Hi Arun_India,

PHP has a limited file upload size by default which you might exceed with your video files. Another reason might be that your assets folder is not writeable for the system. You could check this by trying to upload a smaller file (image or something).

If this works, you could change the max upload size configured in php. You would have to change the values for upload_max_filesize http://www.php.net/manual/en/ini.core.php#ini.upload-max-filesize and post_max_size http://www.php.net/manual/en/ini.core.php#ini.post-max-size .

You can change these values by changing the php.ini config file directly,
by adding 2 lines to the .htaccess:
php_value upload_max_filesize [XY]
php_value post_max_size [XY]
or as far as I remember even by setting a silverstripe variable in the _config.php. (Ask Google for it ;)).

HTH
SF

Hi chinni,

Thanks for your comments,but still i have the sane issue.

While uploading video,its shows an fatal error in dataobject_manager folder.

"Fatal error: Call to a member function obj() on a non-object in C:\inetpub\wwwroot\SilverStripe\dataobject_manager\code\FileDataObjectManager.php on line 533"

Regards Arun