[Geiser-users] Leaving the REPL-buffer: Warnings about coding systems

[Dr. Ludwig Meier]

Hello everybody,

when I am leaving Guile in the REPL-buffer by ,q or (exit), Emacs yields 
following warning and promts for selecting a coding system:

;;;;;;;;;;;;;;;;;;;;

These default coding systems were tried to encode "(run-serve...":
  (utf-8-unix (6866 . 4194243) (6867 . 4194204) (6909 . 4194243) (6910
  . 4194204) (6957 . 4194243) (6958 . 4194204) (8949 . 4194243) (8950
  . 4194204) (8982 . 4194243) (8983 . 4194204) (9024 . 4194243))
However, each of them encountered characters it couldn't encode:
  utf-8-unix cannot encode these: \303 \234 \303 \234 \303 \234 \303 
\234 ...

Select coding system (default raw-text):

;;;;;;;;;;;;;;;;;;;;

Killing the buffer after leaving Guile yields the message again. Emacs’ 
language environment is set to UTF-8. I am using the recent Version 
0.2.2 installed via ELPA on Emacs 24.2 (Ubuntu 12.04), but I had this 
problem using the previous versions of geiser either. It seems of course 
not to be a severe issue, but it is very annoying. How could I get rid 
of this warnings? Is there something I am overlooking?

Thank you very much in advance,

Ludwig

--
Dr. Ludwig Meier