Cannot install plugin layer slider and revolution slider

hooladelivery

when i click install it shows this message 

Unpacking the package…

Installing the plugin…

The package could not be installed. The plugin contains no files.

Plugin install failed.

Bryan

Hi,
please first disable the plugins and then update them.
thanks

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hooladelivery

already disable and deleted it ,but still happened

Bryan

this error "The package could not be installed. The package contains no files." could also mean that you have not deregistered the website before moving. Please deregister it on both domains and register again on the new one. If this is not possible then please send a request
thru the contact form which is on the right side at http://themeforest.net/user/muffingroup#contact
Please attach your license key in the message.
thanks

Learn more: Video Tutorials | How To | FAQ Vote on what comes next