Here is the solution: There was a missing dependencie for the plug-in. The right way: 1. Create a plug-in project from a JAR file (http://www.vogella.de/articles/EclipseJarToPlugin/article.html) 2. Go to the MANIFEST.MF - DEPENDENCIES and add org.eclipse.swt - the missing one! After that you can use...

Hi, I try to use TeeChart in an Eclipse Plug-In, but I get the following erros when opening the view: java.lang.ClassNotFoundException: org.eclipse.swt.widgets.Composite at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:506) at org.eclipse.osgi.internal.loader.Bund...