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Jena McWhirter2,702 Points
Errors with "How to Link to JS from functions.php File8:18 with Zac Gordon"
At the end of video "How to Link to JS from functions.php File8:18 with Zac Gordon" he is about to add code on line 4 and then the video ends with no info.
After the header and footer steps I am getting an error saying "Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'wp_theme_js' not found or invalid function name in C:\wamp64\www\folio1\wp-includes\class-wp-hook.php on line 298".
Chris HowellPython Web Development Techdegree Graduate 49,610 Points
So at the end of the video, Im not sure he was going to add another line of code, I believe he was just adding a Line Break between lines 3 and 4 so it was easier to read. When he said "we will add that here as well" he was using his mouse movement back and forth to show the line he just wrote and then spaced it so it looked nice and not cluttered together.
As far as your error looks, you could have a misspelling of your wp_theme_js inside your add_action function.
If you copied letter for letter, his is name wpt_theme_js. (Dont forget the 't'). If that is the case the add_action line underneath your wpt_themes_js would be.
add_action( 'wp_enqueue_scripts', 'wpt_theme_js' );
Though you could of totally named that function anything you wanted, so they have to match. Not even 1 letter off.
Let me know if that helps, if you still have problems, try using the Markdown Cheatsheet when you reply to post a code snippet of your functions.php file.