Yesterday I've upgraded my Windows 7 SP1 Powershell from 2 to 5.1, and upgraded flutter and dart to latest version using the `flutter upgrade` command, all worked fine, and I continued working as normal. Today after trying to access my project again I got a couple of errors, and all of my project structure gone. What can I do? and why that happened? Was that due to the upgrade? or something else?

```
Load Settings
Cannot load settings from file 'C:\Users\user\Documents\FlutterProjects\project\android\project_android.iml': ParseError at [row,col]:[1,1]
Message: Content is not allowed in prolog.
Please correct the file content

Load Settings
Cannot load settings from file 'C:\Users\user\Documents\FlutterProjects\project\project.iml': ParseError at [row,col]:[1,1]
Message: Content is not allowed in prolog.
Please correct the file content

```