The activator for bundle is invalid

Question

I\'m trying to create a simple plugin in eclipse. When I run the application, I see this error in log file:

org.osgi.framework.BundleException : The a

Answer 1

I had the same error, in my case I created my own constructor with parameters. But I didn't provide a default constructor. So after removing my constructor and initialized all within the start() method, it worked like charme.

Answer 2

If you have move the eclipse workspace to a new path, then you should use the project->clean before your plugin build, Or you would meet this problem.