Either no file input or file is too large to upload.

Either no file input or file is too large to upload.

 had an issue uploading a 3.7 M file with Rockmongo. It turns out my php.ini had the following (default) setting:

upload_max_filesize = 2M

Changing that to

upload_max_filesize = 10M

and restarting apache/php fixed it.