The uploaded file exceeds the upload_max_filesize directive in php.ini.

Solution:- 

The uploaded file exceeds the upload_max_filesize directive in php.ini. 

gedit /etc/php.ini (Linux path for php.ini file)

; Maximum allowed size for uploaded files.
; http://php.net/upload-max-filesize
upload_max_filesize = 2M   (Default)

You may change here 2 M to another X size as per requirement.

DONE