Error: unit not found: StdCtrls lazarus / 8-Other ---------------------------------------------------------------------- jekkiechan · 2008-11-28 09:07 Hi everybody, I am a student of Computer Science at the University of technology in Eindhoven, the Netherlands. During my first experience creating a GUI I had problems with lazarus. I can create a form, but when I want to add an event to the form (for instance an On Create-event), lazarus gives me this error: "Error: unit not found: StdCtrls". To me this seems very weird because the file stdctrls.pp exists in the file D:\lazarus\lcl. Some assistants looked at it, and until now they have been unable to trace the error. Maybe you know how to fix this pretty annoying error.  Thanks! ---------------------------------------------------------------------- Almindor · 2008-11-28 11:09 How did you install lazarus? What OS is it? (Vista or.. ?) ---------------------------------------------------------------------- jekkiechan · 2008-11-28 11:50 Yes, it's Vista.