Editor initialization failed: org.knime.workbench.editor.WorkflowEditor. Site is incorrect

KNIME Extensions
#1

Hi all,

I am very new to knime. I am having troubles running an already working workflow. I was able to load the project in KNIME. But when I came back on the same project I could not load the workflow anymore. Below is the error I am getting.

Editor initialization failed: org.knime.workbench.editor.WorkflowEditor. Site is incorrect

Error images are under this link

https://drive.google.com/drive/folders/1fu4jOO-AWNUJsuuWnERemsWs1R8_Tc5T?usp=sharing

I would really appreciate some help from the community.

#2

Hello @tma,

welcome to KNIME Community!

What KNIME version are you using? Have you ever successfully ran this workflow on your own?

Br,
Ivan

#3

Hi Ivan,

Thanks for your response.

Yes I was able to run the workflow before. Then I imported another workflow, it gave me the error mentioned above. I installed some Java Lab extensions, it worked but later both the workflows showed the same error. I don’t know what is wrong exactly.

I am using KNIME 4.2.1.

Best
Tma

#4

Hello @tma,

see this topic as same error message is given to another user.

Can you share your KNIME log?

Br,
Ivan

#5

From the screenshots it might have to do with the DL4J community extension

https://www.knime.com/deeplearning4j

Do you use or need that extension? I think I saw problems with that earlier. It would not load correctly. If you do not use it can you uninstall it?

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#6

I get this annoying error rather often now when trying to open existing workflows:

image
image790Ă—193 6.9 KB

Only fix: Restart KNIME.

fwiw: I do not have any “Lab” or DL4J nodes installed.

#7

Hey there,

I have had a look at this and there will be a fix coming up that should address this issue.

At least for the scenario I considered, this is indeed not related to any extensions.

A deterministic way to reproduce this error is as follows:

  1. Open a workflow and edit it

  2. Begin closing the AP by exiting the application (e.g. on Windows by pressing the red X in the title bar)

  3. When prompted whether to save the modified workflow, click “Cancel”.

  4. Expected: the AP should remain open, the workflow is not saved and other workflows can be opened without problems.

  5. Problematic: Opening a new workflow causes the error message shown above.

@qqilihq Could this be the issue in your case? It would exceptionally nice if you’d grab a nightly build and verify that everything works as expected there.

Best Regards,
Ben

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