Error:java: invalid source release: 8 in Intellij. What does it mean?

Question

Im trying to compile some code in I\'m using Intellij Ultimate 13.1.4, but I get the following error and I have no idea what it means:

Information:Using java         


        

Answer 1

I tried out all the steps mentioned in here https://stackoverflow.com/a/26009627/2058104, but the 4th point has now changed. You need to go to Preferences -> Build, Execution, Deployment -> Compiler -> Java Compiler

In there, as shown in below figure, you need to change the "Target bytecode version". Although, I changed it to 8 (since I needed to downgrade to Java 8), it was giving the same error, over and over. Therefore, try to remove the existing entry (in this table) and add it again. This worked for me.

On the other hand, clean the project and try to run again.