Intellij - Error:java: invalid source release: 1.8
Solution 1
- Install jdk1.8.*
- Change SDK to jdk1.8.*
- Done
Solution 2
Try to change java version at the terminal, try this:
change-java 8
Solution 3
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
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Marsipan
Software Engineering student at RIT, currently interning at Constant Contact working on Java applications.
Updated on June 04, 2022Comments
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Marsipan almost 2 years
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 runjavac -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 referenceupdate-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. - Preferences -> Java Compiler: set 'project bytecode version' to 1.8
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mohit6up about 7 yearsThanks, this one worked for me after trying everything else suggested on SO and elsewhere.