Project unable to run

[ccsavvy]

Hi, tried to compile this project on my end. Got this build error

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':omegarecyclerview:compileDebugJavaWithJavac'.

Failed to calculate the value of task ':omegarecyclerview:compileDebugJavaWithJavac' property 'options.generatedSourceOutputDirectory'.
Querying the mapped value of map(java.io.File property(org.gradle.api.file.Directory, fixed(class org.gradle.api.internal.file.DefaultFilePropertyFactory$FixedDirectory, /Users/christianlumapac/Downloads/OmegaRecyclerView-master/omegarecyclerview/build/generated/ap_generated_sources/debug/out)) org.gradle.api.internal.file.DefaultFilePropertyFactory$ToFileTransformer@15efd388) before task ':omegarecyclerview:compileDebugJavaWithJavac' has completed is not supported

Please advice, thanks