Error reading environment file null/null when trying to startup the stat oracle agent (4250657)

The following error occur when trying to startup the stat oracle agent:

1. If this is a custom or a real PRODUCT_TOP then make sure it is register in the context file for fs1 and fs2.

or

2. If this is not a true PRODUCT_TOP and you just want to migrate to a specific directory then add this parameter to the stat.conf. Here is an example. Make sure to enter_env_code and substitute XXFO_TOP with the top that error in the log. 

enter_env_code.env.XXFO_TOP:/enter_path