Every custom node requires a </closing> tag. i.e. <route>, <access>, <x-item> & any others
Uncaught TypeError: Taeluf\PHTML::insertCodeBefore(): Argument #1 ($node) must be of type DOMNode, null given - Make sure you don't have any empty .php files in your phad dir.
Commit 912d622 added breaking changes regarding can_read_row(). Commit c3f423b is the commit before that. If you updated on branch v0.4 and things broke, you can revert to c3f423b. Alternatively, make sure your can_read_row() handler accepts a string as the 3rd argument, AND make sure can_read_row return true for any node where can_read_row was not set on the node. THEN, commit c6dd271 removes can_read_row() from the compiled output & instead checks can_read_row during read_data(). This adds overhead of looping over every row before data is returned.