Thank you, I will check your solution in a moment!
Maybe, you can explain what this error means. I have successfully created some workflows on a different computer but at work this appears when I try to add more nodes to LOCAL workflow:
An error has occurred. See error log for more details.
org.eclipse.ui.internal.browser.WebBrowserEditor cannot be cast to org.knime.workbench.editor2.WorkflowEditor
I have moved your question to new topic to keep our Forum organized and for people to easier find wanted information.
Regarding your error - It happens while adding new workflows to Local repository or adding new nodes to imported workflow? can you explain it a bit more? Some print screen would help