I am currently working on several different projects, which however share some code (serial reading functions, etc...). For that reason, I which to have some .h and .cpp files in a common folder to be included in multiple projects. I realised from other thread that I cannot simply include the folder in the "Additional Include Directories" and use relative paths, so all my #include feature full paths. However, when I get all the includes right it doesn't compile thrashing out what seems like a huge list of random errors. Any idea on why this happens, or is there any other (better?) way to include code files from different folders?