Cannot run Grails task in a Gradle multi-module project

We have a multi module Gradle project where on of the submodules is a Grails 2.5.x project. Whenever I try to run a Grails task (test-app, run-app), IntelliJ tries to run it using Gradle rather than Grails and fails.

For example,
Synchronizing the Grails project:
```
/opt/jdk/current/bin/java -Dgradle.home=/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4 -Dtools.jar=/opt/jdk/current/lib/tools.jar -Dfile.encoding=UTF-8 -classpath /home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/groovy-all-2.3.10.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-core-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-base-services-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-messaging-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-model-core-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-wrapper-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-docs-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-base-services-groovy-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-native-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/ant-1.9.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-launcher-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-model-groovy-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-cli-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/ant-launcher-1.9.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-ui-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-tooling-api-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-resources-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/gradle-open-api-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-ide-native-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-signing-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-publish-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-code-quality-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/ivy-2.2.0.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-diagnostics-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-ide-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-antlr-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-resources-sftp-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-platform-native-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-platform-play-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-javascript-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-maven-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-osgi-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-plugin-use-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-jacoco-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-sonar-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-jetty-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-language-native-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-announce-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-language-java-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-platform-base-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-reporting-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-dependency-management-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-ear-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-language-jvm-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-build-init-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-build-comparison-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-ivy-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-scala-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-language-scala-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-plugin-development-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-platform-jvm-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-tooling-api-builders-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-language-groovy-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-resources-s3-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-plugins-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-testing-native-2.4.jar:/home//.gradle/wrapper/dists/gradle-2.4-all/6r4uqcc6ovnq6ac6s0txzcpc0/gradle-2.4/lib/plugins/gradle-resources-http-2.4.jar org.gradle.launcher.GradleMain --project-dir /home//work/webapp grails-idea-print-project-settings "-PgrailsArgs=--non-interactive -plain-output"Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
FAILURE: Build failed with an exception.

BUILD FAILED
* What went wrong:

Task 'grails-idea-print-project-settings' not found in project ':webapp'.
Total time: 7.924 secs

* Try:
Run gradle tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
```
Running the application:
```
12:53:19 PM: Executing external task 'grails-run-app -PgrailsArgs="--non-interactive -plain-output"'...
FAILURE: Build failed with an exception.

* What went wrong:
Task 'grails-run-app' not found in project ':webapp'.

* Try:
Run gradle tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 0.955 secs
Task 'grails-run-app' not found in project ':webapp'.
12:53:20 PM: External task execution finished 'grails-run-app -PgrailsArgs="--non-interactive -plain-output"'.
```

---

*Imported from [IDEA-142843](https://youtrack.jetbrains.com/issue/IDEA-142843) · Type: Bug · Votes: 1*
*Comments, attachments, dates and reporter are not part of the export — follow the link above for the full history.*

Reproduce synchronization and application execution in a Gradle multi-module project containing a Grails 2.5.x submodule. Start with the grails-idea-print-project-settings and grails-run-app entry points, then verify that the Grails tasks are resolved by Grails rather than Gradle; done means both commands execute successfully.

Written by the indexing model from the issue text.