Attempt to set a non-property-list object as an NSUserDefaults

Question

I thought I knew what was causing this error, but I can\'t seem to figure out what I did wrong.

Here is the full error message I am getting:

Attempt to se         


        

Answer 1

https://developer.apple.com/reference/foundation/userdefaults

A default object must be a property list—that is, an instance of (or for collections, a combination of instances of): NSData, NSString, NSNumber, NSDate, NSArray, or NSDictionary.

If you want to store any other type of object, you should typically archive it to create an instance of NSData. For more details, see Preferences and Settings Programming Guide.