'Cannot connect to docker daemon in intellij in ubuntu with snap

In Intellij Ultimate docker is not detected automatically.

I choose "create new", but i get the message, that i cannot connect to docker daemon at unix /var/run/docker.sock

i started docker with: sudo snap docker start

The file docker.sock exists.

i added permission like it is said in other posts: sudo usermod -aG docker $USER and logged out and in again.

It does not help. What can i do?

Solution 1:^[1]

I have the same problem. And I think that the snap package is not able to access /var/run/docker.sock See https://stackoverflow.com/a/69565328/351758

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Solution	Source
Solution 1	Janning