An error has occurred writing to the exception log. The permissions are not set properly on the log file or directory, or the log file has been marked as READ-ONLY. #3

Help, I rebuild sigama pro-2.0 , then it goes the error:


An error has occurred writing to the exception log. The permissions are not set properly on the log file or directory, or the log file has been marked as READ-ONLY.


Then I install DNN 2.1.2 clean, the error still there.


Anybody, Help!