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Unresolved Requirements [message #1859094]

Thu, 11 May 2023 10:44

Lukas-Angelo Meier

Messages: 8
Registered: May 2023

Junior Member

Hi All,

I have been working on a project with GMF and GMF Tooling, but a while ago it broke due to some update and i couldn't generate code anymore.

The version I found that still works is GMF Tooling 3.2.1.
Now i can generate code, however i am getting this error when running the application:

Bundle was not resolved because of a uses constraint violation.
  org.apache.felix.resolver.reason.ReasonException: Uses constraint violation. Unable to resolve resource org.eclipse.gmf.runtime.diagram.ui.render [osgi.identity; osgi.identity="org.eclipse.gmf.runtime.diagram.ui.render"; type="osgi.bundle"; version:Version="1.7.2.202211041032"; singleton:="true"] because it is exposed to package 'org.w3c.dom.events' from resources org.eclipse.osgi [osgi.identity; osgi.identity="org.eclipse.osgi"; type="osgi.bundle"; version:Version="3.18.300.v20230220-1352"; singleton:="true"] and org.w3c.dom.events [osgi.identity; osgi.identity="org.w3c.dom.events"; type="osgi.bundle"; version:Version="3.0.0.draft20060413_v201105210656"] via two dependency chains.

Chain 1:
  org.eclipse.gmf.runtime.diagram.ui.render [osgi.identity; osgi.identity="org.eclipse.gmf.runtime.diagram.ui.render"; type="osgi.bundle"; version:Version="1.7.2.202211041032"; singleton:="true"]
    require: (&(osgi.wiring.bundle=org.eclipse.core.runtime)(&(bundle-version>=3.5.0)(!(bundle-version>=4.0.0))))
     |
    provide: osgi.wiring.bundle: org.eclipse.core.runtime
  org.eclipse.osgi [osgi.identity; osgi.identity="org.eclipse.osgi"; type="osgi.bundle"; version:Version="3.18.300.v20230220-1352"; singleton:="true"]

Chain 2:
  org.eclipse.gmf.runtime.diagram.ui.render [osgi.identity; osgi.identity="org.eclipse.gmf.runtime.diagram.ui.render"; type="osgi.bundle"; version:Version="1.7.2.202211041032"; singleton:="true"]
    require: (&(osgi.wiring.bundle=org.eclipse.gmf.runtime.draw2d.ui.render.awt)(&(bundle-version>=1.2.0)(!(bundle-version>=2.0.0))))
     |
    provide: osgi.wiring.bundle; bundle-version:Version="1.10.0.202211041032"; osgi.wiring.bundle="org.eclipse.gmf.runtime.draw2d.ui.render.awt"; singleton:="true"
  org.apache.batik.transcoder [osgi.identity; osgi.identity="org.apache.batik.transcoder"; type="osgi.bundle"; version:Version="1.16.0.v20221027-0840"]
    import: (&(osgi.wiring.package=org.apache.batik.bridge)(&(version>=1.16.0)(!(version>=2.0.0))))
     |
    export: osgi.wiring.package=org.apache.batik.bridge; uses:=org.w3c.dom.events
  org.apache.batik.bridge [osgi.identity; osgi.identity="org.apache.batik.bridge"; type="osgi.bundle"; version:Version="1.16.0.v20221027-0840"]
    import: (osgi.wiring.package=org.w3c.dom.events)
     |
    export: osgi.wiring.package: org.w3c.dom.events
  org.w3c.dom.events [osgi.identity; osgi.identity="org.w3c.dom.events"; type="osgi.bundle"; version:Version="3.0.0.draft20060413_v201105210656"]
	at org.eclipse.osgi.container.Module.start(Module.java:463)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel$2.run(ModuleContainer.java:1852)
	at org.eclipse.osgi.internal.framework.EquinoxContainerAdaptor$1$1.execute(EquinoxContainerAdaptor.java:136)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1845)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.incStartLevel(ModuleContainer.java:1786)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.doContainerStartLevel(ModuleContainer.java:1750)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1672)
	at org.eclipse.osgi.container.ModuleContainer$ContainerStartLevel.dispatchEvent(ModuleContainer.java:1)
	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:234)
	at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:345)

I suppose it has to do with the org.apache.batik version required by GMF Tooling beeing outdated, however I do not know how to fix this issue.
Currently there are two org.apache.batik versions installed, 1.6.0 and 1.16.0.

Any help on how to tackle this issue is appreciated.

Thank You

Attachment: error.log
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Re: Unresolved Requirements [message #1859761 is a reply to message #1859094]

Mon, 26 June 2023 07:36

Kabiru Usman

Messages: 42
Registered: April 2023

Member

The error seems to indicate that the 'org.eclipse.gmf.runtime.diagram.ui.render' bundle is exposed to the 'org.w3c.dom.events' package from two different sources, causing a uses constraint violation.

One way to potentially resolve this issue is to try to isolate your environment so that there's only one version of each package. You can try uninstalling one of the versions of 'org.apache.batik' to see if that resolves the conflict.

Also, check your target platform and make sure it contains the correct and consistent set of plugins. This is often a reason for such issues.

If the issue persists, you may need to manually resolve the dependencies, which can be time-consuming and complex, but usually works.

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