on an uncaught unicode error, the message is printed to the console:
Error: 4invalid UTF-8 sequence
The '4' seems wrong.
See std/utf.d line 345
Comment #1 by benoit — 2008-09-04T03:18:59Z
then change to
Error: invalid UTF-8 sequence in decode(char[],int)
Error: invalid UTF-8 sequence in file utf.d line 435
Error: invalid UTF-8 sequence (4)
But 4invalid looks like an error in generating the error.
Comment #2 by andrej.mitrovich — 2011-05-24T22:36:22Z
It's been fixed, can't find "4invalid".
Comment #3 by andrej.mitrovich — 2011-05-25T07:19:39Z
Fixing my closing mistakes. Sorry for the noise.
Comment #4 by andrei — 2015-11-03T14:07:26Z
Code has been modified heavily since, can't find the culprit if still present. Please reopen if a repro is available.