Could not get unknown property 'FileUtils' for object of type org.gradle.process.internal.DefaultExecAction_Decorated

[davidcian]

When running the jpackage task after the jpackageImage task, with imageDir, imageOutputDir, installerOutputDir and installerType set, the execution fails with error message:
Could not get unknown property 'FileUtils' for object of type org.gradle.process.internal.DefaultExecAction_Decorated

[siordache]

Which version of Gradle do you use? And which JDK?

[davidcian]

These are the details from running the gradle --version command:

Gradle 6.3

Kotlin:       1.3.70                                                             
Groovy:       2.5.10                                                             
Ant:          Apache Ant(TM) version 1.10.7 compiled on September 1 2019         
JVM:          14.0.1 (Oracle Corporation 14.0.1+7)                               
OS:           Windows 10 10.0 amd64

[siordache]

Thanks! I fixed it in 2.17.8.