Strange values displayed in Xcode debugger

问题:

I'm currently using Xcode version 7.2.1, and I'm getting weird values displayed for most values in the debugger. The weird thing is it's always the same value. Other than a few values, all variables are listed as containing the value "00:30:00". The best way to show this is to give you an example.

I have tried restarting Xcode, clean and build, re-booting, and even re-installing Xcode, but I can't seem to escape this weird value. If I put in print statements, all the values show up correctly in the console. Is there any way I can get them to be correct in the debugger? Thanks.

Edit: This is kind of interesting. If I move the mouse pointer over one of the entries, you can see that it displays "00:30:00", but if I inspect the value, it displays the correct date value.

回答1:

I finally figured it out! I must have typed something in the "Edit Summary Format..." popup. It took it as a literal format string and displayed it for all string values from thereafter. Once I removed that, everything went back to normal.