Project property 'property' is set to an invalid value and will be defaulted to FALSE. <reason>
A persisted value for a Boolean property is not one of the following:
1 or 0
On or Off
true or false
This error is most likely caused by editing the project file by hand.
To correct this error
Edit the project file again and restore it to a satisfactory condition.
The affected property's value will be set to false.