Hello,
I'm seeing many errors like this in the Xcode debug console when I build and run my app:
ERROR: Unrecognized attribute string flag '?' in attribute string "T@"NSString",?,R,C" for property debugDescription
The app project makes heavy use of Logger(), and I suspect it is related to that logging in some way, but I haven't been able to narrow down the issue to specific log calls.
I have Category, Subsystem and Timestamp enabled in the Xcode console, but none of those are displayed for this output.
What causes this? Or how can I better narrow down the source?
Thanks for the reply!
We fixed this two ways:
// debugDescription is... because Swift, I guess.
+ (MTLPropertyStorage)storageBehaviorForPropertyWithKey:(NSString *)propertyKey {
if ([propertyKey isEqualToString:@"debugDescription"])
{
return MTLPropertyStorageNone;
}
else
{
return [super storageBehaviorForPropertyWithKey:propertyKey];
}
}
@end
In our base model type:
+ (MTLPropertyStorage)storageBehaviorForPropertyWithKey:(NSString *)propertyKey {
if ([@[
@"isSubmitting", @"submitting", @"debugDescription"
] containsObject:propertyKey])
{
return MTLPropertyStorageNone;
}
else
{
return [super storageBehaviorForPropertyWithKey:propertyKey];
}
}
@end
Oh, there is also an fpritntf that actually generates this output in MTLEXTRuntimeExtensions.m, starting at line 601. You can comment that out or delete it and change it to a "break;" statement, like this:
