Upgrade to version 1.4 failed due to bad .zip file?
See http://screencast.com/t/Qe36c8X1dJcg
shawnholt sent this to me, but indicated that permission issues may have caused it. Seems plausible if we cannot replicate, as he had been editing files in the extension and that may have caused permissions issues for the web server being unable to overwrite those files. Normal server permissions would cause this error I'm pretty sure. If so, please close.