diff -r 079419e7228d -r 476bd870313d ProjectController.py
--- a/ProjectController.py	Fri Jan 15 10:11:05 2021 +0100
+++ b/ProjectController.py	Fri Jan 15 10:15:41 2021 +0100
@@ -159,6 +159,7 @@
                                                          no_stdout=True,
                                                          no_stderr=True).spin()
         except Exception:
+            self.logger.write_error(_("Couldn't launch IEC compiler to determine compatible options.\n"))
             return buildopt
 
         for opt in options: