--- a/eric6/Project/Project.py Mon Feb 01 13:25:37 2021 +0100 +++ b/eric6/Project/Project.py Mon Feb 01 14:49:12 2021 +0100 @@ -1167,8 +1167,13 @@ enable = False else: fn, ext = os.path.splitext(os.path.basename(self.pfile)) + # try new style file first fn = os.path.join(self.getProjectManagementDir(), - '{0}.e4d'.format(fn)) + '{0}.edj'.format(fn)) + if not os.path.exists(fn): + # try old style file second + fn = os.path.join(self.getProjectManagementDir(), + '{0}.e4d'.format(fn)) enable = os.path.exists(fn) self.dbgActGrp.findChild( QAction, "project_debugger_properties_load").setEnabled(enable)