You may see this error when uploading packages to Gemfury using cURL. This
usually means a typo in your cURL command line options. You may have typed
curl -F package=filename, in which case cURL sent the string “filename”
as the value of “package”. Instead you want to prefix the filename with
@ to indicate that you would like the content of this file.
To correct this error, run:
curl -F package=@filename ...