Error after installing Gutenberg (I’d tried to stop WP from removing tags)

I installed the Gutenberg plugin today to try it out.

I’m getting an error message both at the top of my WP dashboard, and when I go to view the site in a browser:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘ikreativ_tinymce_fix’ not found or invalid function name in /home1/asharp/public_html/andreasharp.com/wp-includes/class-wp-hook.php on line 288

A few days ago, I got so sick of years of WP stripping out my tags when I go back to Code-View after switching to Visual — that I finally decided to find a way to solve that problem. I found somebody’s solution https://ikreativ.com/stop-wordpress-removing-html/

It didn’t work, so I deleted the file that I made with this suggestion’s code, and put my backed-up, unchanged functions.php file back where it was before I fiddled with this.

I looked at line 288 in wp-includes/class-wp-hook.php. It is blank.

I’ll paste the whole section below a line of *** below.

The first line is line 286.

The indents don’t carry over the copy/paste step, so it might be hard to see that the entirety of line 287 is

$this->current_priority[ $nesting_level ] = $priority = current( $this->iterations[ $nesting_level ] );

Then a blank line for 288.

And line 289 is foreach ( $this->callbacks[ $priority ] as $the_ ) {

*******************************************************************************

do {
$this->current_priority[ $nesting_level ] = $priority = current( $this->iterations[ $nesting_level ] );

foreach ( $this->callbacks[ $priority ] as $the_ ) {
if( ! $this->doing_action ) {
$args[ 0 ] = $value;
}

// Avoid the array_slice if possible.
if ( $the_[‘accepted_args’] == 0 ) {
$value = call_user_func_array( $the_[‘function’], array() );
} elseif ( $the_[‘accepted_args’] >= $num_args ) {
$value = call_user_func_array( $the_[‘function’], $args );
} else {
$value = call_user_func_array( $the_[‘function’], array_slice( $args, 0, (int)$the_[‘accepted_args’] ) );
}
}
} while ( false !== next( $this->iterations[ $nesting_level ] ) );

Hoping someone can send what I can paste in to replace what I have, and that it’ll carry over the copy/paste step, and that it’ll fix the whole problem.

Help urgently needed.

I fear I won’t have this solved before Gutenberg is the core rather than the plugin.

Thanks so much if anyone can answer.

Whatever code you added that has the “ikreativ_tinymce_fix” function in it is broken. Remove that code.

The error is coming from wp-hook, but the error is actually caused by your added code. Remove the add_filter line that you added which is adding the “ikreativ_tinymce_fix” filter.