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Vaadin designer http error
I am relatively new to vaadin. I am currently trying to develop some views with the vaadin designer but the designer does not work properly. Only the following http error is displayed in the internal browser. Thanks for your help.
HTTP ERROR: 404
Problem accessing /6ff5. Reason:
Powered by Jetty:// 9.3.19.v20170502
OS: Windows 10 10.0 amd64 Browser: Chrome/64.0.3282.24 Java: 1.8.0_152-release IntelliJ: IntelliJ IDEA - 2018.3.5 - IU-183.5912.21 Designer: 4.2.1 Vaadin: 8.7.0
Hi, and sorry to hear you ran into problems. Sounds like the internal server might not get started. Do you get the same error every time, or just randomly? Could you send us your IDEA log file? (You can find it from Help -> Show log)
Thanks! The log file does show some exceptions we are fixing for the next maintenance release, but I'm not sure they are related to this. What kind of project are you working with? Does the error reproduce when creating a FW project from an archetype / platform project from vaadin.com/start? (I wasn't sure which one you are using)
I created my project with the Vaadin Maven Archetype. I installed the Vaadin Designer plugin after I created the project. Now I have noticed that the designer works in an entirely new project but not in all projects that already existed before I installed the plugin. But I can not see any difference between the two projects.
Ok, that's good to know. It does actually sound like the exception that has been fixed just now. Could you try uninstalling the current Designer, and installing a snapshot version from https://cdn.vaadin.com/vaadin-designer/internal/intellij-snapshot-3/updatePlugins.xml ? You can add the URL by selecting
Manage plugin repositories from the IDEA plugin settings. Let me know if that fixes the issue for you.
Now the vaadin designer settings tab is working. However, I am still getting the http error.
Great! And oh no. It does seem really weird that the old projects don't work and the new ones do. Did you try re-importing the old projects? Any chance you could share one of those old, borked projects? You can share them through the feedback channel if you want to do it privately.
Reimporting has solved the problem. Thanks a lot.