On Fri, Jul 25, 2014 at 12:32:20AM -0700, Marcel Taeumel wrote:
> Okay, I'll try it again. :) If I update build 13700, there is a warning for
> "update-cwp.278.mcm" that says: "About to serialize an empty package.". I
> just proceed.
> 
> ...okay, update finished at build 13871. Changed the code again (i.e.
> something in StringHolder) and want to commit the changes based on the
> Kernel-nice.860 package. Then I get a new error from ZipWriteStream "Bite
> size mismatch" in #flushBlock:.
> 

The only thing I can suggest is to empty your package-cache directory
completely, then try again. I am guessing that there may be a damaged
MCZ file in your local package-cache directory.

Dave