I have got this Error while building grade
Error:Execution failed for task \':app:processDebugResources\'. > No slave process to process jobs, abor
This thread was mentioned in No slave process to process jobs, aborting android studio 3.0.1 and I had exact same issue. (Error was not going in-spite of shrink=false, minify=false, invalidte cache).
Simple solution which solved the issue was close the android studio & relaunch it. Not sure why "invalidate cache & restart" failed. But seems that Android is becoming new MSWindows.. (I lost 1.5 hours in finding on forums & trying to fix the error.. Eventually it turned out to be a windows trick.)
Hope this age old trick will help somebody..