Issues with making a C++ Project

For me, I get no errors when starting a Blueprint project, however, I get an error when it is a C++ project.

ERROR: Multiple configurations specified on command line (first Test, then Development)

The projects name was Test, by the way. Anyways, I’ve been getting a lot of errors with making a project in C++. First it was VS, than it was SDK, and now this, which doesn’t even tell me how to fix it.