[SOLVED] IntelliJ IDEA - Remote Development - Backend IDE was not started successfully

IntelliJ IDEA - Remote Development - Backend IDE was not started successfully

I had this error today after updating my IntelliJ IDEA on Windows machine and trying to access project on my remote Ubuntu virtual machine over SSH with JetBrains Gateway.

JetBrains Client 2022.1
JetBrains Gateway 2022.1
IntelliJ IDEA 2022.1 (Ultimate Edition)

Solution

TL/DR

I've removed whole /home/user/.cache/JetBrains folder.

Explanation

I've resolved my problem by checking logs:

#c.i.i.StartupUtil - JVM options: [-Djava.home=/home/user/.cache/JetBrains/RemoteDev-IU/...

Line 86164: 2022-04-25 09:40:57,760 [ 288] INFO - STDOUT - This IDE build has expired. Please download a new build from JetBrains official site

Since it was remote project on my Ubuntu 20.04 virtual machine.

I've removed whole /home/user/.cache/JetBrains folder.

Next time I started my remote project from JetBrains Gateway it downloaded client and other missing files automatically on my Ubuntu machine and then everything worked.

For some reason IDE on Ubuntu side didn't get updated when opening remote project on Ubuntu.