## 06/10/2021 20:37:56 | 1.2.9.9 | wxPython 3.0.1.0 msw (classic) | win32 Windows 10 AMD64 ##
Traceback (most recent call last):
File "Dlg\DLG_Grille.pyc", line 769, in On_outils_recalculer
File "Ctrl\CTRL_Grille.pyc", line 4545, in RecalculerToutesPrestations
File "Ctrl\CTRL_Grille_cases.pyc", line 433, in MAJ_facturation
File "Ctrl\CTRL_Grille.pyc", line 2723, in Facturation
File "Ctrl\CTRL_Grille.pyc", line 4073, in CalculeTarif
TypeError: can't compare datetime.timedelta to NoneType
Merci pour votre aide
Mélanie
