I only get a small dialog box with messages "Failed to compile... Line number 0...Total errors 2"
Of course (because i don't have same OS installed as you) i can't speak for how things should work, but under windows it is possible to use the mouse and double-click the top border in order to size the window to larger proportions.
Also when compilation finished you can use the up-down keys to scroll inside the message Window.
You can 'cycle' through windows using F6 and shift-F6 keys instead of using the mouse, and use F5 for 'zooming' the window.
If you'd checkmarked the all options as explained then you should see on one of the first lines at the top of the message window which exact fp.cfg file was being used (location on your disk).
Do you think it's worthwhile uninstalling and reinstalling again?
If everything else fails then yes.
Right now i believe you have to get yourself a little more familiar with FP-IDE and compilation with Free Pascal as a whole.
It might perhaps be a steep learning curve, but if you hang in there during the 'dark' period you'll be up and running in no time and laugh about these encountered issues (alas always in hindsight of course :-) )
Sorry to butt into your quotes to JP
Are there different versions of fp.cfg?
That's always possible (and might work confusing). As explained the Show all errors option will tell you exactly which fp.cfg is being used (at top of compiler message window, scroll waaaay up o see if you got all errors option set).
I have a version in my home directory. Under #IFDEF NORMAL of those options you show only
i believe something might have gone lost during conversation.
The suggestion made by JP entails that you fill in the paths in FP-IDE (or alternatively, copy paste them into fp.cfg, then fire up FP-IDE again to see what changed inside the compiler options inside FP-IDE).
the entries JP showed that starts with:
1) -Fu should be located inside FP-IDE directory options, tab UNITS
2) -Fi should be located inside FP-IDE directory options, tab INCLUDE FILES
3) -Fl should be located inside FP-IDE directory options, tab LIBRARIES
If you do it inside fp.cfg then you can copy paste, in case you do it from within FP-IDE then you need to remove the -Fx parts and only fill in the paths. Each entry goes on a separate line.