Error in Eclipse

Question

I'm trying to install Dali plugin to eclipse, but eclipes says that its already installed. I then tried to install only Dali diagram editor, but after that when i try to create config file to hibernbate i get an error:

An error has occurred. See error log for more details.
org/eclipse/jpt/jpa/core/JpaProject 

I then deleted the Dali plugin.
After that I created a new project and .jars files to lib directory , refreshed project in eclipse, left-clicked to jar file, and got an error:

An error has occurred. See error log for more details.
org/eclipse/jpt/common/utility/internal/StatefulCommandExecutor

What is wrong?

Answer 1

Try installing the plugin after starting eclipse with the -clean option followed by trying the same on a new workspace. Also, run an Eclipse update before trying any of the above. Does it help ?

If nothing else works, try starting with a fresh download of Indigo SR2 downloaded from here : http://www.eclipse.org/downloads/packages/release/indigo/sr2