raise informative errors in validate
raise informative errors in validate

dask/distributed,dask/distributed,mrocklin/distributed,amosonn/distributed,blaze/distributed,blaze/distributed,broxtronix/distributed,broxtronix/distributed,mrocklin/distributed,dask/distributed,amosonn/distributed,broxtronix/distributed,amosonn/distributed,dask/distributed,mrocklin/distributed