Knime Modern UI not working, error during launching

Ardilla · March 13, 2024, 9:44pm

Today I updated Knime to version 5.2.2, and modern ui ceise to function

I’m getting the following error:

{
“app”: “KnimeUI”,
“message”: “Could not initialize class org.knime.gateway.impl.webui.entity.AppStateEntityFactory”,
“vueInfo”: null,
“stack”: “Error: Could not initialize class org.knime.gateway.impl.webui.entity.AppStateEntityFactory\n at new o (http://org.knime.ui.java/assets/index-6dc36896.js:5:64172)\n at e.convertJSONToRPCError (http://org.knime.ui.java/assets/index-6dc36896.js:5:64400)\n at e.processResult (http://org.knime.ui.java/assets/index-6dc36896.js:5:66193)\n at e.resolveRes (http://org.knime.ui.java/assets/index-6dc36896.js:5:66540)\n at e.resolveResponse (http://org.knime.ui.java/assets/index-6dc36896.js:5:65443)\n at Eae.sendData (http://org.knime.ui.java/assets/index-6dc36896.js:6:21143)\n at async Object.call (http://org.knime.ui.java/assets/index-6dc36896.js:6:23623)\n at async si.initializeApplication (http://org.knime.ui.java/assets/index-6dc36896.js:45:23314)”
}

veniapputrii · March 14, 2024, 8:05am

Seems like I’ve got a similar error to you. I’ve already updated several extensions. And I got that error. However, I’m still can use KNIME but in the classic UI

ArjenEX · March 14, 2024, 10:15am

Perhaps this is a related issue that also applies to you?

armingrudd · March 14, 2024, 10:48am

Thank you @Ardilla and @veniapputrii for reporting this issue.

As @ArjenEX has mentioned, would you please check if you have HCS Tools from community extensions installed and if uninstalling the extension solves the issue?

aelama · March 14, 2024, 10:51am

I got a similar massage:

Could not initialize class org.knime.gateway.impl.webui.entity.AppStateEntityFactory

In my case a new installation with a “fresh” download from Release 5.2.2 solved the problem.
After the new installation I got some warnings about a missing JDBC Oracle Driver, which has to be reinstalled. After all, everything works.

armingrudd · March 14, 2024, 4:53pm

Dear @Ardilla, @veniapputrii and @aelama,

There is an update for the HCS Tools from the community extensions now which fixes the issue.

Thanks again for reporting this.

aelama · March 14, 2024, 5:43pm

I don’t use HCS Tools and it was not installed. This Error occurs right after the update to 5.2.2. Not every error necessarily has only one cause

armingrudd · March 14, 2024, 6:04pm

Yes, you are right @aelama,

Do you still have the previous installation in which the issue occured? Or can you reproduce the same issue by installing the extensions you had installed on the previous one?

aelama · March 14, 2024, 6:48pm

No extension installation just the update to 5.2.2 today. 2/3 Updates on different Machines worked well. Just one crashes but I was able to switch to the old GUI. Only one or two workflows were opened. With an oracle JDBC connector and a PDF Writer Node, nothing else special.After the new installation from a fresh download I was forced to reinstall the oracle JDBC driver. That’s it, nothing else!

armingrudd · March 15, 2024, 9:37am

Dear @aelama,

Thank you for providing more information regarding the problem you encoutnered.

To enlighten you about the issue with more details:
The main root of the problem was in the old R scripting extension from community extensions which is a dependency for the HCS Tools community extension:

If you had the old R scripting extension or the HCS Tools extension (which installs the old R scripting extension with it), then you could encounter the issue after updating to 5.2.2. Now, the issue is fixed with the R scripting extension and both extensions work fine.

I would like to ask if that makes sense regarding your problem as well or can you still reproduce the issue?

aelama · March 18, 2024, 7:40am

Yes you are right, my problem seem to be caused by the “R - Scripting extension” it was installed (but not the HCS-Tools).

I started the “damaged” version today with the modern UI and still got:

but now a update of the “R - Scripting extension” was offered:

after the update the the new GUI works perfectly as usual.

armingrudd · March 18, 2024, 7:55am

I’m glad the problem is solved and thank you all again for reporting this issue very quickly

wiswedel · March 28, 2024, 5:59pm

KNIME Analytics Platform 5.2.3 has been released, which fixes the root cause of the problem discussed above.

forum · March 31, 2024, 9:00am

Internal ticket ID: NXT-2490
Fix version(s): 5.3.0, 5.2.3
Other related topic(s):