I use Eclipse 4.14 for an old RCP application that I updated to Java 8. Now it is possible to export the product but as soon as I add the feature "org.eclipse.babel.nls_eclipse_de" for the German language to the product in the "Contents" part the following error appears:
Processing inclusion from feature org.eclipse.babel.nls_eclipse_de: Bundle org.eclipse.ant.tests.core.nl_de_4.22.0.v20211218020001 failed to resolve.: Host plug-in org.eclipse.ant.tests.core_0.0.0 has not been found.
The application do start in German. I only have problems with the export of the product.
Edit: The run configuration noticed plug-ins are missing. Launching is possible. Export is not possible because of "missing" plug-ins. I do not understand why they are missing.