Class file has wrong version 52.0, should be 50.0

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I’m trying to compile my project in IntelliJ idea. I’m using a class in an external jar file and on compilation receiving the above error.

I understand that it’s saying the jar file was compiled with a newer Java version than that which IntelliJ is using. My question is how do I make them compatible? I have updated the Java on my Mac to 1.8 and when I run java -version or javac -version it confirms this.

What am I missing? (Apart from Java development experience)

Answer

Select “File” -> “Project Structure”.

Under “Project Settings” select “Project”

From there you can select the “Project SDK”.



Source: stackoverflow