While trying to run tests, I ran into this compilation error: I tried researching this on Google and here, and after applying all of the solutions that worked for others this issue still persists. Here is what I have done so far: Preferences -> Java Compiler: set 'project bytecode version' to 1.8 I also set the target bytecode version to 1.8 for each individual module as well Preferences -> Build, Execution, Deployment -> Build Tools -> Maven -> Runner: Set JRE to use Project JDK (which correctly displays as 1.8) Project Structure -> Project: set Project SDK to 1.8 and language level to 8 Project Structure -> Modules -> Sources: set language level to 8 for each module Project Structure -> Modules -> Dependencies: set Module SDK to 1.8 I think this issue may have something to do with a discrepancy between the JDK and the compiler. When I run java -version from the terminal it returns 1.8.0_111. However when I run javac -version it returns 1.7.0_79. I looked for ways to force change the javac version to match the java version but nearly all of them reference update-alternatives which is not available for Mac OS or removing /usr/bin which is not allowed (even with sudo) on El Capitan. Workaround Edit: I was able to bypass the issue by going to Preferences -> Build, Execution, Deployment -> Compiler -> Java Compiler and changing the compiler from "javac" to "Eclipse" and I am able to compile my project.

Reputation: 51

Intellij - Error:java: invalid source release: 1.8

While trying to run tests, I ran into this compilation error:

invalid source release: 1.8

I tried researching this on Google and here, and after applying all of the solutions that worked for others this issue still persists. Here is what I have done so far:

Preferences -> Java Compiler: set 'project bytecode version' to 1.8
- I also set the target bytecode version to 1.8 for each individual module as well
Preferences -> Build, Execution, Deployment -> Build Tools -> Maven -> Runner: Set JRE to use Project JDK (which correctly displays as 1.8)
Project Structure -> Project: set Project SDK to 1.8 and language level to 8
Project Structure -> Modules -> Sources: set language level to 8 for each module
Project Structure -> Modules -> Dependencies: set Module SDK to 1.8

I think this issue may have something to do with a discrepancy between the JDK and the compiler. When I run java -version from the terminal it returns 1.8.0_111. However when I run javac -version it returns 1.7.0_79. I looked for ways to force change the javac version to match the java version but nearly all of them reference update-alternatives which is not available for Mac OS or removing /usr/bin which is not allowed (even with sudo) on El Capitan.

Workaround Edit:
I was able to bypass the issue by going to Preferences -> Build, Execution, Deployment -> Compiler -> Java Compiler and changing the compiler from "javac" to "Eclipse" and I am able to compile my project.

Upvotes: 5

Answers (5)

acarlstein

Reputation: 1838

On IntelliJ:

Click on "File" menu
Click on "Settings" sub-menu.
On the Settings window, click to expand "Build, Execution, Deployment"
Expand "Build Tools"
Click on "Gradle"
On Gradle JVM, select the Java version you wish to use

IntelliJ Settings - Gradle Configuration Image

Upvotes: 1

Ivan Aracki

Reputation: 5361

The solution that helped me:

Under Build, Execution, Deployment > Build Tools > Gradle > Runner

Change Run tests using: from Platform Test Runner to Gradle Test Runner:

Upvotes: 0

Tim Lin

Reputation: 49

Install jdk1.8.*
Change SDK to jdk1.8.*
Done

Upvotes: 4

Marsipan

Reputation: 51

I was able to successfully compile my project by going into Preferences -> Build, Execution, Deployment -> Compiler -> Java Compiler an changing the "use compiler" option from Javac to Eclipse.

Upvotes: 0

isabelaterribili

Reputation: 21

Try to change java version at the terminal, try this: change-java 8

Upvotes: 1

Intellij - Error:java: invalid source release: 1.8

Answers (5)

Related Questions