diff -r ecfb59e4ecb0 -r a00f41d097f3 ProjectController.py
--- a/ProjectController.py	Tue Dec 22 18:05:05 2020 +0100
+++ b/ProjectController.py	Wed Jan 13 10:28:09 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: