Error:BUG! exception in phase 'class generation' in source unit '_BuildScript_' unsupported Target MODULE

Question

I'm trying to create a new Java 9 project using gradle but right after project creation I received error from gradle:

Error:BUG! exception in phase 'class generation' in source unit '_BuildScript_' unsupported Target MODULE

Java version: 9 (build 9+178)
Gradle version: 4.1-rc-2

According to this article those java/gradle versions should be compatible.
How can I solve this problem?

Any help highly appreciated.

Can you share the Gradle event logs for this failure as well or/and a minimal project that can be tried out to reproduce this please. — Naman
– Naman, Commented Aug 27, 2017 at 3:07
what version of grade did you use? i used 4.1, still got the same error. — Narendran Solai Sridharan
– Narendran Solai Sridharan, Commented Aug 29, 2017 at 8:14
Something similar happened for me, here is how I fixed it stackoverflow.com/a/53509014/1195507 — rvazquezglez
– rvazquezglez, Commented May 14, 2019 at 0:17

kamaz · Accepted Answer · 2017-09-22 13:41:06Z

25

I have solved it by downgrading Gradle JVM to 8. It is not perfect but keeps you going while jdk9 and gradle and intellij stabilises.

Intellij View

edited Sep 22, 2017 at 13:41

user177800

answered Aug 30, 2017 at 21:17

kamaz

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Narendran Solai Sridharan · Accepted Answer · 2017-08-29 09:47:18Z

7

Setting the Gradle home to local Gradle distribution solved the issue in my case.

Java version: 9+181
Gradle version: 4.1
Intellij version: 2017.2.2

if we set to use default Gradle wrapper, IntelliJ downloads an earlier version of Gradle. I think it is the reason for failure.

answered Aug 29, 2017 at 9:47

Narendran Solai Sridharan

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5 Comments

oidualc Over a year ago

Any additional step to follow? In my case it isn't working with this configuration: jdk9+181, gradle 4.1, idea 2017.2.4, linux

Narendran Solai Sridharan Over a year ago

I did not have any issues. since gradle is a build tool, you could try to downgrade JVM of build tool to 1.8 and give a try.

oidualc Over a year ago

Yes, for the moment I'm doing this

dominic.e Over a year ago

Didn't work for me too. Went back to JDK8 (with Gradle 4.1) which works fine. Will wait some days

Erik Over a year ago

If on macOS and Gradle has been installed with Homebrew, then brew --prefix gradle reveals the location of where libexec/ can be found. For me, that is /usr/local/opt/gradle, so I set my project's Gradle home to /usr/local/opt/gradle/libexec. I'm sure Windows' alternative Chocolatey has a similar function to find the latest installation directory.

Sormuras · Accepted Answer · 2017-10-04 17:03:21Z

3

Seems fixed in 2017.3

See IntelliJ IDEA 2017.3 173.2941.3 Release Notes: https://confluence.jetbrains.com/display/IDEADEV/IntelliJ+IDEA+2017.3+173.2941.3+Release+Notes

See issue: https://youtrack.jetbrains.com/issue/IDEA-171520

answered Oct 4, 2017 at 17:03

Sormuras

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dB. · Accepted Answer · 2021-11-12 14:20:30Z

3

This issue seems to have been fixed in Groovy 2.4.12 and upgrading to at least that version resolved a similar problem in https://github.com/jenkinsci/JenkinsPipelineUnit/issues/292.

answered Nov 12, 2021 at 14:20

dB.

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1 Comment

Joerg S Over a year ago

Upgrading groovy fixed the issue for me.

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