NiFi Processor Invalid State Issues

[Jim Reilly]

Hi,
When using NiFi and adding a Processor (say for example in my case: PostHTTP), 
how do you know what the issue is when creating a processor, when its not 
valid?   It shows the invalid icon, the log files says something like: 
"processor is not in a valid state", but, it does not say what the invalid 
state is or what property/attribute is incorrect.   How can I figure this out.
For PostHTTP, it looks like I have valid settings, and believe I have a valid 
URL for the POST.
Any thoughts..???
  Tkx,
Jim