Prolem run with external mongo DB

hi . i tried to connect external mongo DB using following comment

export MONGO_URL=mongodb://localhost:27017/to_do_01

then run meteor

but when i run meteor mongo

i get these

what should i doo

meteor mongo only works when you are NOT using an external mongoldb. When you set MONGO_URL the meteor command will not start its own instance of mongodb.

Apparently you have mongodb already installed on your system and prefer to use that?

yes i working with that