style sheet missing

Nobody has claimed this yet.

[jw@cn05 photon-ml]$ ./gradlew build -x test -x integTest
Configuration on demand is an incubating feature.
:buildSrc:compileJava NO-SOURCE
:buildSrc:compileGroovy UP-TO-DATE
:buildSrc:processResources UP-TO-DATE
:buildSrc:classes UP-TO-DATE
:buildSrc:jar UP-TO-DATE
:buildSrc:assemble UP-TO-DATE
:buildSrc:compileTestJava NO-SOURCE
:buildSrc:compileTestGroovy NO-SOURCE
:buildSrc:processTestResources NO-SOURCE
:buildSrc:testClasses UP-TO-DATE
:buildSrc:test NO-SOURCE
:buildSrc:check UP-TO-DATE
:buildSrc:build UP-TO-DATE
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
org.jetbrains.kotlin.gradle.tasks.AbstractKotlinCompile class not found, default kotlin tasks ignored
:assemble UP-TO-DATE
:rat FAILED

FAILURE: Build failed with an exception.

* Where:
Script '/home/jw/photon-ml/build-scripts/rat.gradle' line: 86

* What went wrong:
Execution failed for task ':rat'.
> stylesheet /home/jw/.gradle/daemon/4.0/gradle/resources/rat-output-to-html.xsl doesn't exist.

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

BUILD FAILED in 21s
1 actionable task: 1 executed
[jw@cn05 photon-ml]$

Start at build-scripts/rat.gradle line 86 and reproduce the reported ./gradlew build -x test -x integTest failure. Check how the RAT task locates rat-output-to-html.xsl under the Gradle resources directory; done means the rat task and full build complete without the missing-stylesheet error.

Written by the indexing model from the issue text.