unresolved references when using remote interpreter

I just installed PyCharm this morning to evaluate it.

Our local development environments are set up using Vagrant, and I was able to configure a project to use a remote interpreter on the Vagrant guest. However, after doing so I am seeing many unresolved reference errors in the editor.

The interpreter that I have pointed the project to is in a virtualenv, and PyCharm correctly lists all of the packages that are installed in this venv.

Is it expected that PyCharm would be unable to resolve these references when using a remote interpreter?

Thanks for any help!