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I recently downgraded my java version from

java-1.11.0-openjdk-amd64

to

java-1.8.0-openjdk-amd64

At the moment I have

user-admin@V0007054:~$ java -version
openjdk version "1.8.0_181"
OpenJDK Runtime Environment (build 1.8.0_181-8u181-b13-1ubuntu0.18.04.1-b13)
OpenJDK 64-Bit Server VM (build 25.181-b13, mixed mode)

Since then almost all my apps including IntelliJ,Rubymine and Slack stopped working. I'm convinced that this happened after the downgrade. I uninstalled IntelliJ and reinstalled it (twice) through Ubuntu Software app again, but it still doesn't come up when I click on the app.

I did google it for a while but couldn't find any useful info about this. Any help is much appreciated.

Ali J
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  • What errors do you see when you start IDE in the terminal, for example using `bin/idea.sh`? Note that IntelliJ IDEA uses the bundled runtime per https://intellij-support.jetbrains.com/hc/articles/206544879 and system JDK should not affect it unless you've overridden it via the environment variable or you are using a version without the bundled JetBrains Runtime. – CrazyCoder Nov 30 '18 at 08:50
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    Why would you even down grade your java version. :) – preciousbetine Nov 30 '18 at 08:58
  • @CrazyCoder I cannot even find it. I tried it with Rubymine, I can start it from the command line, but not by clicking on its icon. – Ali J Nov 30 '18 at 09:07
  • @AliJ You may need to reinstall the desktop entry. Tools | Create Desktop Entry. – CrazyCoder Nov 30 '18 at 09:20
  • Sorry, I don't know how exactly to do that! I appreciate some instructions please. – Ali J Dec 02 '18 at 11:38

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