Nifi Site-to-site: Source throws error "Unable to find port with id xyz" ; But in destination port with id xyz exist

[#1]

I got problem while setting up nifi site to site.

Source throws error "Unable to find port with id xyz" ; But in destination port with id xyz exist.
Please find below link for screenshots.

Any help please.

Screenshots: https://drive.google.com/drive/folders/0B63F0W31MWMqRTY1UDFWMGFncTA?usp=sharing

[#2 · Accepted solution]

The problem is due to improper configuration on nifi.properties
Please make sure: you have following properties in nifi-1.4.0/conf/nifi.properties:

# Site to Site properties

nifi.remote.input.host=192.168.2.8 # Previously it was localhost when I was getting error

nifi.remote.input.socket.port=10000 # Your destination machine should have allowed this port