Is Designer ever going to work again?

I haven’t been able to get Designer to work for months. I see issues being reported on Git that are not being assigned. Is this still a viable product or has it been quietly end of lifed?

Which issue you are referring to?

Using the latest Vaadin Designer, with Vaadin version 24.4.3, and IntelliJ 2024.1.4 Ultimate on Windows. If I try and use the built in vaadin browser, IntelliJ freezes and becomes unresponsive for several minutes. If I switch to using Google Chrome, I can drag elements to the outline, but the preview never updates. I am unable to set any properties on the added elements.

I can mess around the imports in the .ts file because it looks like customElement is now in let/decorators. I sometimes can get some elements to render, but not all the time. Even from machine to machine I get different behavior.

I remember when Designer just worked. It was great! It looks like they’ve been having issues since April.

And I just tested a fresh install of IntelliJ on mac OS. Created a Spring Boot application using the latest Vaadin version. Installed the Vaadin Designer plugin. Added a simple view via java code, and successfully ran the program.

Then I went to add a Vaadin Designer file, and got an error saying that no polymer found in project.

I really liked Designer for being able to see what I was creating. I really sped up the development process. Doing the template vs everything in code was a lot quicker to write. I just cant get the thing to work anymore ( and haven’t been able to for months ).

Is your problem this one Invalid import in Vaadin 10+ design template · Issue #2462 · vaadin/designer · GitHub ?

Probably. Even when I try manually setting the imports the application still does not work as expected ( hangs, doesn’t render the view in google chrome browser, internal browser does not work at all ).

So, my question that hopefully someone from Vaadin who owns that product can answer: Is Designer still a supported product or is it being End of Lifed or replaced with something else?

I see that particular issue has been open since March with no apparent movement on it.

Just wondering if this is something that will work for you as it did for me.

There should be now new version of Designer in IntelliJ market place, which fixes couple most annoying issues. It now works with OSX with M-series CPUs and also the import issue with Lit is fixed.

Last year IntelliJ 2024.2 and newer had changes in plugin API’s that broke Designer. We have now released Vaadin Designer 4.6.29 in IntelliJ market place, which works again with the latest IntelliJ versions.

Well, hmm… I downloaded the latest version ( 4.6.29 ) into IntelliJ. It installed, but when I try to open an existing .js file, it shows me the java file, but nothing else. When I try and create a new Vaadin 10+ design, nothing happens.

Any idea where I can look to see what the problem is?

Yes, it is broken again due some changes introduced in IntelliJ 2025.2. Designer 4.6.29 should work with IntelliJ versions 2024.2 to 2052.1.