If you can not install plugins and themes in XAMPP for Linux Localhost and you see this error
unable to connect to the file system. Please confirm your credentials
You can easily fix this error by adding this code in your WordPress wp-config.php file
define( 'FS_METHOD', 'direct' );
/* That's all, stop editing! Happy publishing. */
And after adding this code if you see another following error
Installation failed. Could not create directory
You will have to open your WordPress directory in Linux
/opt/lampp/htdocs/wordpress
Now open terminal and type this command to fix the error
chmod 777 -R wp-content
or
sudo chmod 777 -R wp-content
this will solve the error.
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