* What went wrong: Execution failed for task ':run'. > Process 'command 'C:\Program Files\Java\jdk-12.0.2\bin\java.exe'' finished with non-zero exit value 1

Estou com um projeto JavaFX11 simples apenas pra mostrar um label com algo escrito na tela usando o scenebuilder.
Mas sempre que eu dou o run no projeto aparece:

  • What went wrong:
    Execution failed for task ‘:run’.
    Process ‘command ‘C:\Program Files\Java\jdk-12.0.2\bin\java.exe’’ finished with non-zero exit value 1

Já procurei em muitos fórums e não encontrei nenhuma solução sobre esse problema.

OBS.:
Eu uso a versão do JDK12.0.2;
A minha IDE Apache Netbeans12.0 está configurado com o JDK12.0.2;
O JAVA_HOME está apontando para o C:\Program Files\Java\jdk-12.0.2;
O CLASS_PATH também está apontado para o C:\Program Files\Java\jdk-12.0.2\lib;
Na variável de ambiente path está apontado o C:\Program Files\Java\jdk-12.0.2\bin;
Notei que esse problema ocorre só quando eu uso o JavaFX. Já tentei fazer um hello world apenas no terminal e não deu nenhum erro.

Minnha build.gradle é:

plugins {
    id 'java'
    id 'application'
    id 'org.openjfx.javafxplugin' version '0.0.9'
}
javafx {
    version = '13'
    sdk = 'C:/Users/Ultra-Net/Documents/javastuff/openjfx-11.0.2_windows-x64_bin-sdk/javafx-sdk-11.0.2'
    modules = ['javafx.controls', 'javafx.fxml', 'javafx.swing', 'javafx.media', 'javafx.graphics']
    configuration = 'compileOnly'
}
repositories {
    jcenter()
}
dependencies {
    implementation 'com.google.guava:guava:29.0-jre'
    testImplementation 'junit:junit:4.13'
}
application {
    mainClassName = 'com.smdevelopment.olamundo.Main'
}

Ao usar o comando ./gradlew -i run o gradle mostra o seguinte erro:

Task :run FAILED
Caching disabled for task ‘:run’ because:
Build cache is disabled
Task ‘:run’ is not up-to-date because:
Task has not declared any outputs despite executing actions.
Starting process ‘command ‘C:\Program Files\Java\jdk-12.0.2\bin\java.exe’’. Working directory: E:\dev\java\ola-mundo Command: C:\Program Files\Java\jdk-12.0.2\bin\java.exe --add-modules javafx.controls,javafx.fxml,javafx.graphics,javafx.media,javafx.swing --module-path -Dfile.encoding=windows-1252 -Duser.country=BR -Duser.language=pt -Duser.variant -cp E:\dev\java\ola-mundo\build\classes\java\main;E:\dev\java\ola-mundo\build\resources\main;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.guava\guava\29.0-jre\801142b4c3d0f0770dd29abea50906cacfddd447\guava-29.0-jre.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.guava\failureaccess\1.0.1\1dcf1de382a0bf95a3d8b0849546c88bac1292c9\failureaccess-1.0.1.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.guava\listenablefuture\9999.0-empty-to-avoid-conflict-with-guava\b421526c5f297295adef1c886e5246c39d4ac629\listenablefuture-9999.0-empty-to-avoid-conflict-with-guava.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.code.findbugs\jsr305\3.0.2\25ea2e8b0c338a877313bd4672d3fe056ea78f0d\jsr305-3.0.2.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\org.checkerframework\checker-qual\2.11.1\8c43bf8f99b841d23aadda6044329dad9b63c185\checker-qual-2.11.1.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.errorprone\error_prone_annotations\2.3.4\dac170e4594de319655ffb62f41cbd6dbb5e601e\error_prone_annotations-2.3.4.jar;C:\Users\Ultra-Net.gradle\caches\modules-2\files-2.1\com.google.j2objc\j2objc-annotations\1.3\ba035118bc8bac37d7eff77700720999acd9986d\j2objc-annotations-1.3.jar com.smdevelopment.olamundo.Main
Successfully started process ‘command ‘C:\Program Files\Java\jdk-12.0.2\bin\java.exe’’
Error: --module-path requires module path specification
:run (Thread[Execution worker for ‘:’ Thread 2,5,main]) completed. Took 1.291 secs.