Manfred Schürhoff wrote:Hi,
I was running into the same problem and found a solution. Check out this site: https://docs.sonatype.org/display/M2ECLIPSE/Installation+Requirements. Here you can read:
If you are using RAD/RSA 7.5, install the "Graphical Editing Framework Zest Visualization Toolkit" under the most recent version of "GEF SDK" using the update site http://download.eclipse.org/tools/gef/updates/releases/ before you install m2eclipse.
After installing the GEF plugin, restart RAD, then install m2eclipse plugin (only select the Required component).
If you still get some errors ("No repository found.....") when installing the m2eclipse plugin, check your proxy settings (if any).
It may also help to restart RAD again or to remove and then add the m2eclipse URL (http://m2eclipse.sonatype.org/sites/m2e-e34/) again.
This did the trick for me.