App crashs when I try to start it

[Ferdinand9999]

Traceback (most recent call last): File "\app\newganmanager__main__.py", line 4, in main().main_loop() File "\app_packages\toga\app.py", line 663, in main_loop self._impl.main_loop() File "\app_packages\toga_winforms\app.py", line 285, in main_loop raise self._exception File "\app_packages\toga_winforms\app.py", line 258, in run_app self.create() File "\app_packages\toga_winforms\app.py", line 113, in create self.interface._startup() File "\app_packages\toga\app.py", line 624, in _startup self.startup() File "\app\newganmanager\app.py", line 62, in startup self.profile_manager = Profile_Manager(Config_Manager().get_latest_prf(str(self.paths.app)+"/.user/cfg.json"), str(self.paths.app)) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "\app\profile_manager.py", line 10, in init self.prf_cfg = self.load_config(root_dir+"/.user/"+name+".json")

TypeError: can only concatenate str (not "NoneType") to str

[tlebaxter]

Having the same error, any idea on how to fix this?

Update: This fixes itself if run as an administrator.