An error occurred in template CMTeasable.head.canonical.ftl for Content with ID 45544588.
Show Details 
FreemarkerView[template=/jar:id:contentproperty:/Themes/swissinfo/templates/swissinfo-templates.jar/archive!/META-INF/resources/WEB-INF/templates/swissinfo/com.coremedia.blueprint.common.contentbeans/CMTeasable.head.canonical.ftl]
ch.swissinfo.cae.contentbeans.SIGalleryImpl$$[id=45544588]
Error rendering view
When calling function "getLink", required parameter "target" (parameter #1) was specified, but had null/missing value.

----
Tip: If the parameter value expression on the caller side is known to be legally null/missing, you may want to specify a default value for it with the "!" operator, like paramValue!defaultValue.
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: #function getLink(target, view=UNDEFI... [in template "lib/coremedia.com/cae.ftl" in function "getLink" at line 61, column 1]
	- Reached through: ${cm.getLink(self.master, {"absolute"... [in template "jar:id:contentproperty:/Themes/swissinfo/templates/swissinfo-templates.jar/archive!/META-INF/resources/WEB-INF/templates/swissinfo/com.coremedia.blueprint.common.contentbeans/CMTeasable.head.canonical.ftl" at line 10, column 5]
----
ch.swissinfo.cae.contentbeans.SIGalleryImpl$$
com.coremedia.objectserver.dataviews.DataView
com.coremedia.dispatch.HasCustomType
ch.swissinfo.cae.contentbeans.SIGalleryImpl
ch.swissinfo.cae.contentbeans.SIGalleryBase
ch.swissinfo.common.contentbeans.SIGallery
com.coremedia.blueprint.cae.contentbeans.CMGalleryImpl
com.coremedia.blueprint.cae.contentbeans.CMGalleryBase
com.coremedia.blueprint.common.contentbeans.CMGallery
com.coremedia.blueprint.cae.contentbeans.CMCollectionImpl
com.coremedia.blueprint.cae.contentbeans.CMCollectionBase
com.coremedia.blueprint.common.contentbeans.CMCollection
com.coremedia.blueprint.common.feeds.FeedSource
com.coremedia.blueprint.common.layout.Container
com.coremedia.blueprint.cae.contentbeans.CMTeasableImpl
com.coremedia.blueprint.cae.contentbeans.CMTeasableBase
com.coremedia.blueprint.common.contentbeans.CMTeasable
com.coremedia.blueprint.cae.contentbeans.CMHasContextsImpl
com.coremedia.blueprint.cae.contentbeans.CMHasContextsBase
com.coremedia.blueprint.common.contentbeans.CMHasContexts
com.coremedia.blueprint.cae.contentbeans.CMLinkableImpl
com.coremedia.blueprint.cae.contentbeans.CMLinkableBase
com.coremedia.blueprint.common.contentbeans.CMLinkable
com.coremedia.blueprint.common.navigation.Linkable
com.coremedia.blueprint.common.navigation.HasViewTypeName
com.coremedia.blueprint.common.contentbeans.BelowRootNavigation
com.coremedia.blueprint.common.datevalidation.ValidityPeriod
com.coremedia.blueprint.cae.contentbeans.CMLocalizedImpl
com.coremedia.blueprint.cae.contentbeans.CMLocalizedBase
com.coremedia.blueprint.common.contentbeans.CMLocalized
com.coremedia.blueprint.cae.contentbeans.CMObjectImpl
com.coremedia.blueprint.cae.contentbeans.CMObjectBase
com.coremedia.blueprint.common.contentbeans.CMObject
com.coremedia.objectserver.beans.AbstractContentBean
com.coremedia.objectserver.beans.ContentBean
com.coremedia.objectserver.dataviews.AssumesIdentity
java.lang.Object
com.coremedia.objectserver.view.ViewException: Error rendering view
at com.coremedia.objectserver.view.ViewUtils.rethrow(ViewUtils.java:344)
at com.coremedia.objectserver.view.freemarker.FreemarkerViewEngine$FreemarkerView.render(FreemarkerViewEngine.java:154)
at com.coremedia.objectserver.view.ExceptionHandlingViewDecorator$ExceptionDecorator.decorate(ExceptionHandlingViewDecorator.java:140)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:344)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:428)
at ch.swissinfo.cae.cdn.RenderedContentIdCollectorDecorator$ContentIdCollectorImpl.render(RenderedContentIdCollectorDecorator.java:66)
at ch.swissinfo.cae.cdn.RenderedContentIdCollectorDecorator$ContentIdCollectorImpl.decorate(RenderedContentIdCollectorDecorator.java:59)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:344)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:428)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:184)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:124)
at com.coremedia.objectserver.view.freemarker.impl.CAEFreemarkerFacadeImpl.include(CAEFreemarkerFacadeImpl.java:159)
at jdk.internal.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1552)
at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:73)
at freemarker.core.MethodCall._eval(MethodCall.java:62)
at freemarker.core.Expression.eval(Expression.java:101)
at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100)
at freemarker.core.DollarVariable.accept(DollarVariable.java:63)
at freemarker.core.Environment.visit(Environment.java:383)
at freemarker.core.Environment.visitAndTransform(Environment.java:514)
at freemarker.core.CompressedBlock.accept(CompressedBlock.java:42)
at freemarker.core.Environment.visit(Environment.java:383)
at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:889)
at freemarker.core.Environment.invokeMacro(Environment.java:825)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:84)
at freemarker.core.Environment.visit(Environment.java:347)
at freemarker.core.Environment.visit(Environment.java:353)
at freemarker.core.Environment.process(Environment.java:326)
at com.coremedia.objectserver.view.freemarker.FreemarkerViewEngine$FreemarkerView.render(FreemarkerViewEngine.java:150)
at com.coremedia.objectserver.view.ExceptionHandlingViewDecorator$ExceptionDecorator.decorate(ExceptionHandlingViewDecorator.java:140)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:344)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:428)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:346)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:428)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:184)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:124)
at com.coremedia.objectserver.view.freemarker.impl.CAEFreemarkerFacadeImpl.include(CAEFreemarkerFacadeImpl.java:159)
at jdk.internal.reflect.GeneratedMethodAccessor294.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at freemarker.ext.beans.BeansWrapper.invokeMethod(BeansWrapper.java:1552)
at freemarker.ext.beans.SimpleMethodModel.exec(SimpleMethodModel.java:73)
at freemarker.core.MethodCall._eval(MethodCall.java:62)
at freemarker.core.Expression.eval(Expression.java:101)
at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100)
at freemarker.core.DollarVariable.accept(DollarVariable.java:63)
at freemarker.core.Environment.visit(Environment.java:383)
at freemarker.core.Environment.visitAndTransform(Environment.java:514)
at freemarker.core.CompressedBlock.accept(CompressedBlock.java:42)
at freemarker.core.Environment.visit(Environment.java:383)
at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:889)
at freemarker.core.Environment.invokeMacro(Environment.java:825)
at freemarker.core.UnifiedCall.accept(UnifiedCall.java:84)
at freemarker.core.Environment.visit(Environment.java:347)
at freemarker.core.Environment.visit(Environment.java:353)
at freemarker.core.Environment.process(Environment.java:326)
at com.coremedia.objectserver.view.freemarker.FreemarkerViewEngine$FreemarkerView.render(FreemarkerViewEngine.java:150)
at com.coremedia.objectserver.view.freemarker.FreemarkerViewEngine$FreemarkerView.render(FreemarkerViewEngine.java:122)
at com.coremedia.objectserver.view.ExceptionHandlingViewDecorator$ExceptionDecorator.decorate(ExceptionHandlingViewDecorator.java:113)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:334)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:422)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingBaseView.render(ViewDecoratorBase.java:336)
at com.coremedia.objectserver.view.ViewDecoratorBase$DecoratingServletAndTextView.render(ViewDecoratorBase.java:422)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:152)
at com.coremedia.objectserver.view.ViewUtils.render(ViewUtils.java:109)
at com.coremedia.objectserver.view.BeanView.renderMergedOutputModel(BeanView.java:63)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1373)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1118)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057)
at com.coremedia.objectserver.web.DispatcherServlet.doDispatch(DispatcherServlet.java:69)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:626)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.coremedia.blueprint.cae.filter.PreviewViewFilter.doFilterInternal(PreviewViewFilter.java:48)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at ch.swissinfo.elastic.webservice.filter.RequestParameterFilter.doFilter(RequestParameterFilter.java:44)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.coremedia.blueprint.elastic.social.cae.user.UserFilter.doFilter(UserFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at ch.swissinfo.elastic.webservice.jwt.JwtFilter.doFilter(JwtFilter.java:50)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.coremedia.elastic.core.impl.servlet.TenantFilter.doFilter(TenantFilter.java:55)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.coremedia.blueprint.cae.filter.SiteFilter.doFilter(SiteFilter.java:54)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:84)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:82)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:186)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:358)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:271)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:118)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:158)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:117)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.header.HeaderWriterFilter.doHeadersAfter(HeaderWriterFilter.java:92)
at org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:77)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.multipart.support.MultipartFilter.doFilterInternal(MultipartFilter.java:125)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:141)
at org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:82)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at com.coremedia.blueprint.cae.filter.RequestRejectedExceptionFilter.doFilter(RequestRejectedExceptionFilter.java:41)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687)
at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:764)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:346)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:887)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1684)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: freemarker.core._MiscTemplateException: When calling function "getLink", required parameter "target" (parameter #1) was specified, but had null/missing value.
----
Tip: If the parameter value expression on the caller side is known to be legally null/missing, you may want to specify a default value for it with the "!" operator, like paramValue!defaultValue.
----
----
FTL stack trace ("~" means nesting-related):
- Failed at: #function getLink(target, view=UNDEFI... [in template "lib/coremedia.com/cae.ftl" in function "getLink" at line 61, column 1]
- Reached through: ${cm.getLink(self.master, {"absolute"... [in template "jar:id:contentproperty:/Themes/swissinfo/templates/swissinfo-templates.jar/archive!/META-INF/resources/WEB-INF/templates/swissinfo/com.coremedia.blueprint.common.contentbeans/CMTeasable.head.canonical.ftl" at line 10, column 5]
----
at freemarker.core.Macro$Context.checkParamsSetAndApplyDefaults(Macro.java:308)
at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:888)
at freemarker.core.Environment.invokeMacro(Environment.java:825)
at freemarker.core.Environment.invokeFunction(Environment.java:841)
at freemarker.core.MethodCall._eval(MethodCall.java:65)
at freemarker.core.Expression.eval(Expression.java:101)
at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100)
at freemarker.core.DollarVariable.accept(DollarVariable.java:63)
at freemarker.core.Environment.visit(Environment.java:347)
at freemarker.core.Environment.visit(Environment.java:389)
at freemarker.core.Environment.visitAndTransform(Environment.java:514)
at freemarker.core.CompressedBlock.accept(CompressedBlock.java:42)
at freemarker.core.Environment.visit(Environment.java:383)
at freemarker.core.Environment.visit(Environment.java:410)
at freemarker.core.BlockAssignment.accept(BlockAssignment.java:55)
at freemarker.core.Environment.visit(Environment.java:347)
at freemarker.core.Environment.visit(Environment.java:353)
at freemarker.core.Environment.process(Environment.java:326)
at com.coremedia.objectserver.view.freemarker.FreemarkerViewEngine$FreemarkerView.render(FreemarkerViewEngine.java:150)
... 203 more

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  • Ein Erdrutsch zerstörte 1924 ein Dorf im Maggiatal. Dabei starben zehn Personen. Im Tessin waren die häufigen Erdrutsche eine Folge der massiven Abholzung im 19. Jahrhundert. (Anton Krenn, 1924) Bibliothek der ETHZ
  • Die Samen werden seit Tausenden von Jahren in den Bodenschichten des Moors bei Luzern gelagert. Im Labor werden Bodenproben gesammelt und analysiert, um die Geschichte der Vegetation zu rekonstruieren. Bibliothek der ETHZ
  • Weizenfelder im Wallis auf einer Höhe von 1200 Metern. (Werner Lüdi, 1954) Bibliothek der ETHZ
  • Torfmoor bei Einsiedeln im Kanton Schwyz, fünf Jahre bevor die Region durch den künstlichen Sihlsee überschwemmt wurde. (W. Marthaler, 1934) Bibliothek der ETHZ
  • Carl Schröter (dritter von links) mit einer Gruppe von Botanikern, umgeben von Proben getrockneten Torfs bei Einsiedeln im Kanton Schwyz. (unbekannter Fotograf, 1901-1908) Bibliothek der ETHZ

    Menschliche Siedlungen und Landwirtschaft haben die alpine Landschaft tiefgreifend verändert. Ein Buch mit ersten Farbfotografien von alpinen Landschaften zeichnet die Anfänge der Ökosystemforschung nach. Es regt zum Nachdenken an, über den Verlust der Biodiversität in der Schweiz – ein Problem, das aktueller denn je ist.

    Dieser Inhalt wurde am 08. Februar 2020 - 11:00 publiziert
    Luigi Jorio (Text) und Ester Unterfinger (Bildredaktion)

    Um 1880 begann Carl SchröterExterner Link (1855-1939), Professor für Botanik an der Eidgenössischen Technischen Hochschule in Zürich (ETHZ), Pflanzen in ihrer Umgebung zu fotografieren. Zusammen mit Eduard RübelExterner Link (1876-1960), einem seiner Schüler, wollte er die Faktoren untersuchen, welche die biologische Vielfalt beeinflussen.

    Neben der alpinen Flora begann der Pionier des Landschafts- und Artenschutzes auch den Einfluss menschlicher Präsenz – vom Bau bis zur Landwirtschaft – in fast allen Regionen der Schweiz zu dokumentieren. Dieser umfassende Ansatz wird auch heute noch verfolgt.

    Die Geobotanik, eine Kombination von Botanik und Geografie, konzentriert sich auf Ökosysteme und deren Dynamik. Sie untersucht, wie sich Pflanzenarten zu Gemeinschaften zusammenfügen und an verschiedene Bedingungen anpassen. Dank der Arbeit von Geobotanikern wurden die Grundlagen für den Schutz der Biodiversität und des NaturschutzesExterner Link in der Schweiz gelegt, insbesondere durch die Schaffung des Schweizerischen NationalparksExterner Link.

    Und das ist noch nicht alles. Auch die fotografischen Sammlungen von Schröter und dem Institut für Geobotanik in Rübel – beide finden sich im Archiv der ETH-Bibliothek – illustrieren das Leben in den Alpen vor der Mechanisierung der Landwirtschaft und die Entwicklung der Schweizer Landschaft seit Ende des 19. Jahrhunderts.

    Es ist ein weiteres Beispiel für den schwindelerregenden Verlust der Artenvielfalt auf dem gesamten Planeten. In der Schweiz stellt das Bundesamt für Umwelt fest, dass der Zustand der BiodiversitätExterner Link in den Alpen "unbefriedigend" ist, da die Hälfte der Biotope und ein Drittel der lebenden Arten bedroht sind.

    Eine Auswahl von Fotografien – darunter einige der ersten Farbbilder von Schweizer Landschaften – wird im neuen Band Dokumentierte LandschaftExterner Link des Schweizer Verlags Scheidegger&Spiess vorgestellt. Ziel ist es, Dokumente von historischer Bedeutung zu verbreiten und weitere Forschungen zur Biodiversität anzuregen.

    (Bilder © Bibliothek der Eidgenössischen Technischen Hochschule Zürich)

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