Hi Mike,

The paths in the solution are refreshed when certain events happen. One of those events is when you open a sketch project. It sounds like a bug is preventing that one from happening which we will look into.

However if you switch board and back again that should put all the paths right.

Because arduino does not have the concept of a project it requires that all locations we worked out dynamically when you compile. Visual Micro also does this at other times as mentioned above.

Another event that should happen automatically when a project is opened is that the files in the sketch folder should be read and the project automatically updated accordingly. Again this is because arduino always compiles all sources in the sketch folder regardless of what is contained in a visual studio or atmel studio project. For the same reason removing a source file from a project does not affect compile, it must be removed from the sketch folder.

In fact you could not bother checking in the project and each keep your own. Again this won;t affect compile because libraries and all paths are supposed to be auto re-worked when required.

Do these things make sense, make life easier and what does or does not work based on the above.

Thanks