What does this abort: error mean?

[Pierre-Yves David]

You have some data file missing, this means your repository is corrupted.

Which version are you using. What is this repository? How did you clone 
it, what kind of operation have you been running on it ? Anything else 
worth mentioning ?

On 7/27/21 10:49 AM, Chris Green wrote:
> I just ran 'hg status' and got the following error:-
>
>      chris at t470$ hg status
>      abort: data/bison/bin/a.i at 2081505f56cc: no match found!
>      chris at t470$
>
> I have been messing around with things recently so it's probably my
> fault, but how do I sort it out?
>
-- 
Pierre-Yves David