Eclipse plugin dependency on SWT classes not being resolved

Question

I have an eclipse plugin project which uses some swt objects, eg -

import org.eclipse.swt.widgets.Composite;

When I try to compile it with the 'Target Platform' set to 'Running Platform (Active)', it compiles fine and I dont need to import any swt specific plugins.

However, I created a target platform with Eclipse 3.6.0 and if I set it as the active platform the project has compile errors wherever swt classes are used and cannot resolve them.

Which plugin should I add a dependency to, to resolve these errors?

I tried adding 'org.eclipse.swt' but that does not seem to help.

Answer 1

I had the same problem. In my case, I had a missing dependency and I asked Eclipse to locate the plugin for me.

After the plugin was found on some p2 site, I saw "Resetting Target Platform" in the progress view.

After that, a lot of plugins were broken. Checking the target platform (Window -> Preferences -> Plug-in Development -> Target Platform -> Edit), the field "Architecture" had changed from x86_64 to x86.

Changing the value back and clicking on "Finish" did reset the TP once more and the errors went away.