is missing #720

Submitted 1 year ago

I completed the exercise "1. Exercise: Creating the basis frame for a task management application" in the Eclipse RCP Training, but I cannot launch the project. Eclipse detects the problem: is missing. If I continue anyways I get the following exception:

java.lang.RuntimeException: Application "org.eclipse.equinox.p2.metadata.repository.mirrorApplication" could not be found in the registry. The applications available are: org.eclipse.e4.ui.workbench.swt.E4Application, org.eclipse.e4.ui.workbench.swt.GenTopic,
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(
    at java.base/java.lang.reflect.Method.invoke(
    at org.eclipse.equinox.launcher.Main.invokeFramework(
    at org.eclipse.equinox.launcher.Main.basicRun(
    at org.eclipse.equinox.launcher.Main.main(


  1 year ago

Some dependencies were missing and could be resolved by installing equinox.p2 packages.

can be closed

  1 year ago


sorry for the missing response, we had "home summer vacation" in which we did not check the issue system. is not necessary for the launch. From the error message it sounds like you did incorrectly specify the application to be started as mirrorApplication. You should have specified org.eclipse.e4.ui.workbench.swt.E4Application

Hope this helps, Lars

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