Error rendering template for decorator root - In one Page
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Symptoms
The primary article here is
Resolve Null Page Titles Causing RuntimeException in Confluence
A stack trace error appears when visiting a page. Other pages in the space do not exhibit this error.
The following appears in the atlassian-confluence.log:
2015-02-09 09:12:27,055 WARN [http-8090-52] [atlassian.confluence.themes.DefaultThemeManager] extractTheme Unable to find configured theme module: com.atlassian.confluence.themes.clickr:clickr
-- url: /apps/wiki/plugins/pagetree/naturalchildren.action | userName: user | referer: URL
2015-02-09 09:12:28,103 WARN [http-8090-45] [atlassian.confluence.themes.DefaultThemeManager] extractTheme Unable to find configured theme module: com.atlassian.confluence.themes.clickr:clickr
-- url: /apps/wiki/plugins/editor-loader/editor.action | userName: user | referer: URL
2015-02-09 09:12:28,273 WARN [http-8090-52] [atlassian.confluence.themes.DefaultThemeManager] extractTheme Unable to find configured theme module: com.atlassian.confluence.themes.clickr:clickr
-- url: /apps/wiki/plugins/macrobrowser/browse-macros.action | userName: user | referer: URL
2015-02-09 09:12:33,557 WARN [http-8090-52] [atlassian.confluence.themes.DefaultThemeManager] extractTheme Unable to find configured theme module: com.atlassian.confluence.themes.clickr:clickr
-- url: /apps/wiki/display/SPC/Home | userName: user | referer: URL
2015-02-09 09:12:33,590 WARN [http-8090-52] [atlassian.confluence.themes.DefaultThemeManager] extractTheme Unable to find configured theme module: com.atlassian.confluence.themes.clickr:clickr
-- url: /apps/wiki/display/SPC/Home | page: 12208 | userName: user | referer: URL | action: viewpage
2015-02-09 09:12:33,594 ERROR [http-8090-52] [opensymphony.webwork.dispatcher.VelocityResult] doExecute Unable to render Velocity Template, '/pages/viewpage.vm'
-- url: /apps/wiki/display/SPC/Home | page: 12208 | userName: user | referer: URL| action: viewpage
java.lang.RuntimeException: Error rendering template for decorator root
at com.atlassian.confluence.setup.velocity.ApplyDecoratorDirective.render(ApplyDecoratorDirective.java:186)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:336)
at org.apache.velocity.Template.merge(Template.java:328)
at org.apache.velocity.Template.merge(Template.java:235)
at com.opensymphony.webwork.dispatcher.VelocityResult.doExecute(VelocityResult.java:91)
at com.atlassian.xwork.results.ProfiledVelocityResult.doExecute(ProfiledVelocityResult.java:21)
at com.atlassian.confluence.setup.webwork.EncodingVelocityResult.doExecute(EncodingVelocityResult.java:48)
....
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Error rendering template for decorator page
at com.atlassian.confluence.setup.velocity.ApplyDecoratorDirective.render(ApplyDecoratorDirective.java:186)
at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:175)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
....
Caused by: org.apache.velocity.exception.ResourceNotFoundException: Unable to find resource '/decorators/includes/pageprefs.vm'
at com.atlassian.confluence.util.velocity.ConfigurableResourceManager.loadResource(ConfigurableResourceManager.java:404)
at com.atlassian.confluence.util.velocity.ConfigurableResourceManager.getResource(ConfigurableResourceManager.java:308)
at org.apache.velocity.runtime.RuntimeInstance.getTemplate(RuntimeInstance.java:1400)
....Diagnosis
Enable Safe Mode in Confluence and check if you have similar problem after that or not.
Cause
This issue might be related to the themes in Confluence. There are some warning message in the logs before the error that shows which theme is the problematic theme.
Solution
Workaround
Enable Safe Mode in Confluence.
Disable Third Party Themes (if any).
Resolution
Upgrade to the latest compatible version of Third Party Themes.
Use Default Themes of Confluence.
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