问题
At some point during my work, XCode's po and p commands stopped working. No matter what I enter, it doesn't generate output:
(gdb) po self
(gdb) po [self name]
(gdb) po [UITableView class]
(gdb) po @"Hello"
(gdb) p indexPath.row
(gdb) print indexPath.row
(gdb) po fjkldsjflksdjklwjfkljfkldsjflk
(gdb)
When I enter any of these commands, the command line just goes to the next line, where it prints the blue (gdb), but no output.
I tried the following steps:
- Restart XCode, restart my Macbook
- Tried while debugging in the simulator as well as on a iOS device
- Switched to LLDB and restarted
- Re-installed XCode
The other debugging tools in XCode seem to work okay: Breakpoints, step-by-step execution, the Auto variable examination window etc.
Any ideas?
EDIT: Doesn't work even after a re-install of XCode.
回答1:
Silly me, I was in the 'Target Output' window instead of the 'Debugger Output' window.
Somehow I thought I checked the other console windows there, but apparently I didn't.
回答2:
I added filter in debugger which hid other logs. Removing the filter worked for me.
来源：https://stackoverflow.com/questions/16287299/xcodes-po-command-has-stopped-working