nedmartin.org

Replacing lines 144, 145 in plugin.php:

if (function_exists('wp_get_additional_image_sizes')) {
            $sizes = wp_get_additional_image_sizes();

with

if (function_exists('wp_get_registered_image_subsizes')) {
            $sizes = wp_get_registered_image_subsizes();

fixes the issue.

I was using WP Super Cache plugin, and I had to go clear the cache.

Clearing the cache fixed this problem.

Unfortunately this makes it impossible to import tags or categories that contain a comma in their name.

Same here. The previous version does not have this error.

If you change that line to this, it will temporarily fix this error until they release a fixed version:

if ('wpcf7s' === get_post_type() || (isset($_GET['post_type']) && 'wpcf7s' === $_GET['post_type'])) {

Yes, but what do I do with this API key? I can not find any options or settings to put the API key into?

I even tried modifying the code to put ?key=… after the jsapi script enqueue but that did not seem to work.

I also have this problem. Did you ever find a fix?

I found that the line which installs the plugin was commented out.

To fix this:

On line 221 in file class.yith-wcwl-init.php, remove the commenting

That is, change it from
//$this->_yith_wcwl_install->init();
to
$this->_yith_wcwl_install->init();

Then refresh the plugins page in your WordPress site to get it to run this. I then added the comment back to line 221, just in case it was there for some reason. This does things like create the database table etc.

My installation now works.

I also have the same problem.

The little popup that normally says the product is added pops up blank.