Fix System.ArgumentException in SimpleLoadSaveFunctions.SaveMeasurement (AgroPathogenMeterApp.Droid.SimpleMeasurement simpleMeasurement, System.String filepath)

### Version 1.0(1) ###


### Stacktrace ###


### Reason ###


System.ArgumentException


### Link to App Center ###


* [https://appcenter.ms/users/owenbruce/apps/APM/crashes/errors/2960633976u](https://appcenter.ms/users/owenbruce/apps/APM/crashes/errors/2960633976u)
