|Circular Component Dependency Issue [message #1787067]
||Fri, 18 May 2018 10:03
| Megha Bansal
Registered: May 2018
I am quite new to headless buckminster. I am currently trying to run headless buckminster from windows command prompt through ant script. My application is eclipse e4 application with JavaFx. |
When I run my headless buckminster from build.xml (which resides in the project todo.mathexampl.app.releng), I get a "Circular component dependency detected" error.
[java] INFO: import 'D:\GitRepos\MathappGit\todo.mathexampl.app.releng/buckminster-build.cquery'
[java] Circular component dependency detected. Chain is todo.mathexampl.app.releng -> todo.mathexampl.app.releng -> todo.mathexampl.p2.feature
The feature todo.mathexampl.app.releng is used to compose the p2 update site from which the p2 director can then build the product. It includes the features
>todo.mathexampl.app.feature (application plugins)
>todo.mathexampl.p2.feature (p2 plugins)
>org.eclipse.fx.runtime.e4x.feature (efxclipse runtime)
>org.eclipse.equinox.executable (needed by p2 director to create executable)
The feature todo.mathexampl.p2.feature itself holds the needed p2 plugins but has no dependency on any other feature and also not on todo.mathexampl.app.releng. I also noticed that, when I change order of features included in todo.mathexampl.app.releng, it always takes the first included feature in the circular dependency error. So I do not understand this error.
To resolve the error I included advisor nodes in a cquery with "Allow Circular Dependency" set to true. But now I get another error named "No component named org.eclipse.equinox.executable:eclipse.feature is known to buckminster" although this feature is included in the update site. (The build works when executed from inside Eclipse with the buckminster action "create.product").
[java] INFO: perform 'todo.mathexampl.app.releng#create.product'
[java] No component named org.eclipse.equinox.executable:eclipse.feature is known to Buckminster.
Here is my cquery:
<?xml version="1.0" encoding="UTF-8"?><cq:componentQuery xmlns:cq="http://www.eclipse.org/buckminster/CQuery-1.0" resourceMap="target.platform.rmap">
<cq:rootRequest name="todo.mathexampl.app.releng" componentType="eclipse.feature"/>
<cq:advisorNode namePattern="todo.mathexampl.*" componentType="eclipse.feature" allowCircularDependency="true"/>
<cq:advisorNode namePattern="org.eclipse.*" componentType="eclipse.feature" allowCircularDependency="true"/>
I'm not sure why I would even need to allow "circular dependencies", because there should not be any.
Any pointers would be greatly appreciated!
[Updated on: Fri, 18 May 2018 10:12]
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