I am trying to debug my iOS app using lldb and I’m getting really weird errors on debug.
A few lines before my breakpoint, I’ve got:
CGRect frame = view.frame;
Which I can access with no problems with print frame command in lldb. However, when I try to access the frame again in lldb, I type print view.frame and get the following error:
error: property 'frame' not found on object of type 'UIView *'
This doesn’t make sense as I can verify the view is a UIView* instance and has a valid property called frame by typing po view and getting correct results:
(UIView *) $4 = 0x1e199bf0 <MyAppCustomView: 0x1e199bf0; frame = (3398 3396; 204 208); layer = <CALayer: 0x1e199ce0>>
This particular lldb error happens to me a lot, and I couldn’t find the cause of this error. Someone suggested at Property 'count' not found on object of type 'NSMutableArray *' PO command in lldb that one could use gdb as (gdb) p view.frame but I’m getting error: '(gdb)' is not a valid command. and I highly suspect that a gdb command would “work?” inside another debugger anyway.
Any suggestions or workarounds for this bug which occurs randomly?
Dot notation for message sending is not supported in lldb when using Objective-C. Use bracket notation and cast the result to CGRect: