As a general suggestion: sending version info and short, reproducible code samples will facilitate getting useful advice for questions like this.
On Wed, Nov 5, 2014 at 11:59 AM, Nils Gudat <[email protected]> wrote: > I'm puzzled by the error in the thread title. It popped up today while > running a piece of code that was unchanged and had been working before. > > The error is raised inside a nested loop, so I tried running the loop step > by step, i.e. I "manually" declared the first pair of values that is > usually declared within the loop and then passed to the function which > raises the error. However, running the first iteration of the loop this way > no error was raised, and, surprisingly, running the loop in its entirety > works fine after having run the first iteration manually. > > Any ideas what could cause this behaviour or what this error message is > about? >
