Could not determine java version from '15'

Question

Upon running gradlew.bat I get this error

Anyone have any idea how to fix that? I am trying to run a minecraft mod which is in development so I can better understand how miencraft modding works, here is the link to its source

Upon running with --stacktrace argument as the message suggests this is what I get

* Exception is:
java.lang.IllegalArgumentException: Could not determine java version from '15'.
        at org.gradle.api.JavaVersion.toVersion(JavaVersion.java:70)
        at org.gradle.api.JavaVersion.current(JavaVersion.java:80)
        at org.gradle.internal.jvm.UnsupportedJavaRuntimeException.assertUsingVersion(UnsupportedJavaRuntimeException.java:29)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:32)
        at org.gradle.launcher.cli.JavaRuntimeValidationAction.execute(JavaRuntimeValidationAction.java:24)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:33)
        at org.gradle.launcher.cli.ExceptionReportingAction.execute(ExceptionReportingAction.java:22)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:253)
        at org.gradle.launcher.cli.CommandLineActionFactory$WithLogging.execute(CommandLineActionFactory.java:182)
        at org.gradle.launcher.Main.doAction(Main.java:33)
        at org.gradle.launcher.bootstrap.EntryPoint.run(EntryPoint.java:45)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.runNoExit(ProcessBootstrap.java:60)
        at org.gradle.launcher.bootstrap.ProcessBootstrap.run(ProcessBootstrap.java:37)
        at org.gradle.launcher.GradleMain.main(GradleMain.java:23)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:564)
        at org.gradle.wrapper.BootstrapMainStarter.start(BootstrapMainStarter.java:30)
        at org.gradle.wrapper.WrapperExecutor.execute(WrapperExecutor.java:127)
        at org.gradle.wrapper.GradleWrapperMain.main(GradleWrapperMain.java:61)

I'm pretty sure that means you have a decade+ old gradle installation. Upgrade it. — rzwitserloot, May 15 '21 at 09:43
@rzwitserloot It is 7.0.1 [screenshot](https://imgur.com/a/EoE6PXT) updated yesterday — ThePiGuy, May 15 '21 at 09:51
I messed around with the code and turns out the error means there is something wrong with line 15 in build.gradle. I am still new to java so trying to figure out how to fix it — ThePiGuy, May 15 '21 at 10:13

Could not determine java version from '15'

0 Answers0