[R] R crashes with "Error in UseMethod("depth")" when resizing ggplot windows

[Duncan Murdoch]

On 24/02/2015 4:13 PM, Eike Petersen wrote:
> Hello everyone,
> 
> Quite frequently I encounter crashes when resizing ggplot windows. The
> error message is always as follows:
> 
>> Error in UseMethod("depth") :
>>  no applicable method for 'depth' applied to an object of class "NULL"
>>
>> Process R exited abnormally with code 255 at Tue Feb 24 21:51:18 2015
> 
> The error seems to occur rather unpredictably when I do several
> resizings, e.g. moving a plot window from one monitor to another using
> Windows+Arrow Key several times. It only seems to happen when plotting
> rather large data frames.
> 
> I was about to file this as a ggplot2 issue, but then I realized that I
> can't reproduce it using RStudio - normally, I use emacs/ESS (on Windows
> 7). So maybe this is a bug related to the "plot engine"...? The problem
> is that I can't even do a traceback(), since R is crashed.
> 
> How should I proceed? Are there any other options to retrieve valuable
> debug information?

It's not easy, but you can run R under a debugger, and it will show you
the location of the crash.  As far as I know only gdb supports debugging
R on Windows (there's a copy in the Rtools collection), but perhaps that
will change now that Microsoft has purchased Revolution Analytics.

Duncan Murdoch