[BEAM-9555] Kotlin example incompatible with Gradle 6

• Type: Bug
• Status: Resolved
• Priority: P2
• Resolution: Duplicate
• Fix Version/s: Not applicable
• Component/s: examples-java
• Assignee: Unassigned
• Reporter: Xuebing Li
• Created: 19/Mar/20 12:19
• Updated: 24/Jul/20 19:59
• Resolved: 19/Mar/20 14:36

Description

When compiling Kotlin example with Gradle 6, the following error appears. Note the "What went wrong" section.

$ gradle build
Starting a Gradle Daemon, 1 incompatible and 1 stopped Daemons could not be reused, use --status for details
> Task :buildSrc:spotlessGroovy FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':buildSrc:spotlessGroovy'.
> You must declare outputs or use `TaskOutputs.upToDateWhen()` when using the incremental task API

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.2.2/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 4s

The cause is likely outdated version of spotless. This GitHub issue mentions the exact same error.

P.S. I chose examples-java as this Jira issue's component because examples-kotlin is not an option.

Issue Links

• duplicates: BEAM-9456 Upgrade to gradle 6.6.1