Preview not show up

[fsjack]

Nothing happen when i input "show self.view".

[arigrant]

show view is equivalent to [view setHidden:NO]. If you want to actually see the view you need to do showview view. There is an open issue already to improve the naming here.

[fsjack]

Thanks @arigrant .

Another problem raised.

Error [IRForTarget]: Call to a symbol-only function 'memset' that is not present in the target
error: warning: function 'UIGraphicsBeginImageContextWithOptions' has internal linkage but is not defined
note: used here
error: The expression could not be prepared to run in the target

Then as expected,Preview show up but also a alert show up with it saying "Could not open a empty file".