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 javac 1.7.0_55 to compile java sources
Information:java: Errors occurred while compiling module 'Example'
Information:Compilation completed with 1 error and 0 warnings in 3 sec
Information:1 error
Information:0 warnings
Error:java: invalid source release: 8
My guess is that its something related to Java 8 vs Java 7, but I have no idea what specifically. I've tried to Google around for this message, but they either talk about javac
or target release
, so it doesn't exactly seem to apply.
I had the same issue when "downgrading" a project from Java 8 to Java 6. The reason was that it was not changed at all places in IntelliJ.
In IntelliJ 13.1.4 I had to change Java and SDK version on the following places not to get this error:
File -> Project Structure -> Project Settings
File -> Project Structure -> Module Settings -> Tab: Sources: Language Level
File -> Project Structure -> Module Settings -> Tab: Dependencies: Module SDK
File -> Settings -> Compiler -> Java Compiler -> Target bytecode version
https://i.stack.imgur.com/xanp3.jpg
https://i.stack.imgur.com/HvNLY.jpg
https://i.stack.imgur.com/dxkJl.jpg
https://i.stack.imgur.com/D0KNE.jpg
The last bullet was the one that was not updated in my case. Once I changed this, the error disappeared.
Check your pom.xml
first (if you have one)
Check your module's JDK
dependancy. Make sure that it is 1.8
To do this,go to Project Structure -> SDK's
Add the path to where you have stored 1.8 (jdk1.8.0_45.jdk
in my case)
Apply the changes
Now, go to Project Structure ->Modules
Change the Module SDK to 1.8
Apply the changes
Voila! You're done
Change in pom.xml
1.6
to 1.8
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
For Gradle users having this issues, if nothing above helps this is what solved my problem - apply this declarations in your build.gradle files:
targetCompatibility = 1.6 //or 1.7;1.8 and so on
sourceCompatibility = 1.6 //or 1.7;1.8 and so on
Problem solved!
If you are using Gradle as a build tool and you get this error when executing a Gradle task i.e TomcatRun take a look to my other answer to the same question
javac: invalid target release: 1.8
It can be simply overcome by setting on Project Structure
. You just need to select the right path for related version of JDK. Select new
on dependencies tab, and choose the path. It's done!
https://i.stack.imgur.com/P84ZS.png
Andreas Lundgren's answer worked and I was able to compile and run my app.
However, when I tried to run the project's associated JUnit tests I received the same error. Running
gradle -version
from Windows command prompt showed that gradle was still picking up the incorrect jdk. To fix it I had to set the JAVA_HOME
environment variable to point to the correct jdk and restart IntelliJ.
I checked all above said project version, module version, project bytecode version, target bytecode version settings in IntelliJ Idea
, but all were the same as I scratched.
I face this error Error:java: invalid source release: 1.8
in IntelliJ Idea 2017.2.6
because I upgraded the dependency version Maven
pom file, which(dependency) were supposed to build for JDK 1.8 application and I were building my application on and with maven compiler source and target JDK 1.7.
Hence I again downgrade the dependency version to earlier one in Maven
pom, and the error gone after project Rebuild Module 'xyz_project'.
For Grails users, apply these declarations in your BuildConfig.groovy file:
grails.project.target.level = 1.6 //or 1.7;1.8 and so on
grails.project.source.level = 1.6 //or 1.7;1.8 and so on
You need to click to the project Open Module Settings and change the path of your JDK, if in the file POM you use jdk 1.8, configure jdk 1.8 with correct path.
I add one more path unmentioned in this answer https://stackoverflow.com/a/26009627/4609353
but very important is Edit Configurations
https://i.stack.imgur.com/4stEZ.png
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.
https://i.stack.imgur.com/K0LQR.png
On the other hand, clean the project and try to run again.
I had the same issue the solution for me was to change my java version in the pom.xml file.
https://i.stack.imgur.com/l8CxC.png
https://i.stack.imgur.com/MCo16.png
One should not change the project level JDK and therefore be able to leverage the Maven or Gradle settings when building, but when running Maven or running Gradle using a more modern version of the JDK. If you lower your project level JDK from say JKD8 to JDK6, Maven or Gradle will not run.
Keeping your module at a lower level JDK-wise will enable you to build it to that version, if you use the Module rebuild or build options; using the menu options for rebuilding the project will complain wit "Invalid source release:8...".
As Andreas mentioned all about:
Error:java: invalid source release: 8 in IntelliJ
Error:java: invalid source release: 13 in IntelliJ
Error:java: invalid source release: 14 in IntelliJ...
OR whatever version you are using in Java...
The problem will exist if you do not have it matching inside the below code:
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
This 1.8 in my case, must be matching on your device through MAVEN project library, settings, preferences, project setting and SDK.
I was recently facing the same problem. This Error was showing on my screen after running my project main file. Error:java: invalid source release: 11 Follow the steps to resolve this error
File->Project Structure -> Project Click New button under Project SDK: Add the latest SDK and Click OK.
https://i.stack.imgur.com/qRMIE.png
After running You will see error is resolved..
https://i.stack.imgur.com/094W1.png
If You Get This ERROR: Error:java: invalid source release: 12 Information:java: Errors occurred while compiling module 'IdeaProjects' Information:javac 1.8.0_211 was used to compile java sources Information:Module "IdeaProjects" was fully rebuilt due to project configuration/dependencies changes Information:7/12/2021 8:21 PM - Build completed with 1 error and 0 warnings in 6 s 323 ms Error:java: invalid source release: 12
https://i.stack.imgur.com/AJvN5.png
THEN
https://i.stack.imgur.com/br7Bx.png
In My side :
https://i.stack.imgur.com/rz99d.png
FINISHED
If you Get SOlution of Your IDE then Message Me www.betechnical.tech or amankushwaha9918@gmaill.com
In my case the nuance was that I got a invalid source release 11 (instead of OP's 8). I tried all the solutions above
gradle jvm version , java compilter bytecode version, module language.
I set all the above to java 8 (or 1.8) as that is the library I have on my machine.
The issue was that the build.gradle file had
sourceCompatibility = '11'
Changed this to 8 and it stopped throwing 'compile failed invalid release 11' error
solution reference: github forum
Success story sharing
File -> Settings -> Compiler -> Java Compiler -> Target bytecode version
. Thanks.IntelliJ IDEA -> Preferences... -> Build, Execution, Deployment -> Build Tools -> Gradle -> Gradle JVM
, in case anyone is running into this issue whilst using Gradle.Preferences -> Build, Execution, Deployment -> Compiler -> Java Compiler
.