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Tycho Messages Explained

This page explains errors and warnings reported by Tycho. It shall help Tycho users to diagnose and resolve build problems, or to report bugs in Tycho.

Error Messages

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Warning Messages

[WARNING] Mirror tool: "Problems resolving provisioning plan."

This message may be shown by the tycho-p2-repository-plugin (in version 0.13 or later) when an eclipse-repository module includes a feature patch. Feature patches allow to replace plug-ins contained in a feature with different versions of the plug-ins, so a target platform containing a feature and a corresponding feature patch has only the new versions of the plug-ins. The p2 mirror tool, which is used by the tycho-p2-repository-plugin, mirrors from the resolved target platform, but it is not aware of the semantics of feature patches. Therefore it also tries to mirror the original versions of the plug-ins, and issues a warning when it fails to do so.

In case the warning only reports unsatisfied dependencies to the original versions of plug-ins replaced through a feature patch, it can be safely ignored. All other cases probably indicate an internal error in Tycho and should be reported.

In the case of this message depends on "Cannot resolve target definition:" for some plugins, you can try to adjust the target platform by explicitly adding the plugins and specifying the plug-ins exact version.

[WARNING] The packaging type 'eclipse-application' is deprecated; use 'eclipse-repository' instead.

This message is shown by the tycho-packaging-plugin (in version 0.15.0 or later) when packaging type eclipse-application is used. eclipse-application does not produce p2-enabled products and is no longer maintained. Use eclipse-repository instead.

[WARNING] De-selecting bundles in a target definition file is not supported

The Eclipse Target Editor has the possibiltiy to remove individual bundles from the resolved target definition content. (This is done via the selection on the Content tab of the editor, and results in a <includeBundles> tag in the target definition file.) This configuration is currently ignored Tycho (cf. bug 373776).

As an alternative, you can use target platform filters to remove bundles from the target platform.