I’m getting this error while trying to import sliders in Revolution Slider WordPress plugin:
Error: Wrong export slider file format! This could be caused because the ZipArchive extension is not enabled.
In my case the ZipArchive extension is installed and active (check: http://www.digitpro.it/tools/info.php) so none of other replies on the web applies.
Looks like the
ZipArchive PHP
extension is not installed on your server.You can see there for more info: http://portfoliotheme.org/support/forums/topic/error-importing-sample-revolution-sliders/
When upgrading to PHP 7, you should make sure to install the PHP 7 versions of you libraries as well. The PPA providing PHP 7 also provides a php7.0-zip package. You can install it with:
To see additional PHP 7 libraries that are available, run: