Unable to Install Plugins

Have you checked if your wp-content folder has proper permissions? Change the “wp-content” (and subfolders) permissions to 755.

Here is a useful codex page:
https://codex.www.ads-software.com/Changing_File_Permissions

Also, you could add this line of code anywhere in the root file: wp-config.php

define( 'WP_TEMP_DIR', ABSPATH . 'wp-content/tmp/') ;

and create a new folder named “tmp” inside: /wp-content/

Have similar issue, not resolved.

Please can someone tell me if this was resolved and how?