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After Update to 2.11: Error after Clean Projects [message #1755314]

Thu, 02 March 2017 05:03

Eclipse User

Hi all,

when using a DSL+Generator which was just updated to xtext 2.11 i get the following error:

Errors occurred during the build.
Errors running builder 'Xtext Project Builder' on project '...'.
org.eclipse.xtend2.lib.StringConcatenation.append(Ljava/lang/String;)V

According to https://www.eclipse.org/forums/index.php/t/1084312/ this could be caused by having old 2.10er versions of xtext jars available. So i double checked this and i am even more confused.
Reason is that the xtext features are updated to 2.11 but xtext plugins are still at 2.10. See screenshots.

Could this be the problem causing above named error?

Thanks
klaus

Attachment: featureTab.png
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Attachment: pluginTab.png
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Re: After Update to 2.11: Error after Clean Projects [message #1755351 is a reply to message #1755314]

Thu, 02 March 2017 09:38

Eclipse User

yes it could be, but another interseting point would be what is in your target platform as well.
i have no idea how you got in this situation (and this is the crucial part in the analysis)

Re: After Update to 2.11: Error after Clean Projects [message #1755428 is a reply to message #1755351]

Fri, 03 March 2017 04:55

Eclipse User

So far i did not care about my target platform (and to be honest, i did not think about it in any way).
But with your answer and the couse of the analysis i solved the problem*. This solution solved my origin problem of causing the Error during feature execution. Unfortunatley this solution did not explain why the feature was shown in 2.11.0 but the plugins where shown in 2.10.0.

*Solution: I forced the xbase.lib dependency of the ui-plugin-projekt to be at least 2.11.0. (within the METADATA.MF file). Sadly this version of the plugin could not be installed in an eclipse neon 2. Reason is, that the xbase.lib 2.11.0 was not available in any (standard) update site of neon 2. The latest available version was 2.10.0. So i added http://download.eclipse.org/modeling/tmf/xtext/updates/composite/releases/ as update site within my target eclipse. With this set, i was able to install my latest feature and run it without any error.
Btw: After doing so the xtext features were shown with 2.11.0 and the xtext plugins as well.

Thanks
klaus

[Updated on: Fri, 03 March 2017 05:03] by Moderator

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