Error building on Gradle with Java and Docker on Windows 7

Hi, I encountered this error while running [gradle -b build.gradle clean]. any advice to debug this, or find out where I may have missteps? Thanks! - Screenshot of error message:

FAILURE: Build failed with an exception.* What went wrong:A problem occurred configuring project ‘:core:chaincode:shim:java’.> No signature of method: org.gradle.api.internal.tasks.DefaultTaskInputs.source() is applicable for argument types: ( values: [main Proto source] Possible solutions: collect(), use([Ljava.lang.Object;)