Corrupted workspace (red "X's")

 
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When opening k.Modeler, red "X's" appear in all windows, with the message "Plug-in org.integratedmodelling.klab.ide was unable to load class org.integratedmodelling.klab.ide.navigator.e3.KlabNavigator." This makes working in the Modeler temporarily impossible, due to a corrupted workspace.

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      The message indicates that your workspace has been corrupted. To solve this:

      • rename the .metadata folder in .klab/workspace/ folder after closing the k.Modeler.

      • after that, the k.Modeler will start with a clean workspace and, if the engine is started, it will show the projects that are present in the workspace folder and it will be possible to re-import them.

      • try to re-import them one by one, restarting the k.Modeler for each one of them to detect the one that has corrupted the workspace


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        See also k.Modeler displays red "X"s; "could not create the view"/"no editor descriptor" for a superficially similar-looking case with a different error message and solution..

        And note that by pressing the "details" button in one of the windows with a red X, more information about the problem will be displayed, which can be very helpful for debugging.

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          Another option is to switch to a new workspace:

          • In K.Modeller, go to File -> Switch workspace -> Other...
          • Enter a new workspace name (e.g., "workspace_new")
          • Press the "Launch" button. K.Modeller will reopen in a new workspace.

          Be aware that you will need to selectively reimport the projects you were using - these will of course not be available in the new workspace until you've done so. Be careful in doing so as one of them was the cause of the corruption in the first place.


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