Index: make.py
==================================================================
--- make.py
+++ make.py
@@ -338,11 +338,12 @@
                 print("> Running tests")
                 try:
                     tests = importlib.import_module("grammalecte."+sLang+".tests")
                     print(tests.__file__)
                 except ImportError:
-                    print("# Error. Couldn't import file {}_test.py in folder tests".format(sLang))
+                    print("# Error. Import failed:" + "grammalecte."+sLang+".tests")
+                    traceback.print_exc()
                 else:
                     if xArgs.tests:
                         xTestSuite = unittest.TestLoader().loadTestsFromModule(tests)
                         unittest.TextTestRunner().run(xTestSuite)
                     if xArgs.perf or xArgs.perf_memo: