Maybe it just doesn't like it being on a different drive...
That shouldn't be a problem though using another filesystem on that different drive or having a drive name or path with spaces in their name might be an issue. Note that things could also be different depending on whether you use a global or local configuration file for fp-ide.
I usually use the makefile to compile the units (but can be done manually as well) and copy the compiled units over to my 3th party units directory (to not mix with FPC distribution related files for an easier update). The 'normal' route would be to use the fppkg package manager from Free Pascal (allows you to automatic build and install things) but seems nobody uses that
Anyhows, if you go to your menu/options/compiler tab verbose there there is an option named "used tried info". If you select that then the message window will spit out some details on what paths it tried to locate files and if they where found or not. That is very informative when you receive "can't find' messages. Alternatively you can use the option "All" in that same options list to achieve the same (it will just spit out even more detailed information on other topics as well).
You good now ? or do you require further assistance regarding this topic ?
PS: nice to see you again
