Here is my mongod.cfg file:
mongod.cfg
bind_ip = 127.0.0.1 dbpath = C:\\mongodb\\data\\db logpath = C:\\mongodb\\log\\mongo-server.log verbose=v
I was also faced the same issue with mongodb 2.6.
What solved my problem was I just run mongod --repair command
mongod --repair
and then start mongod.exe
mongod.exe
It's worked for me