| ERROR | [XPDY0050] Invalid dynamic type |
| CAUSE | It is a dynamic error if the dynamic type of the operand of a treat expression does not match the sequence type specified by the treat expression. This error might also be raised by a path expression beginning with / or // if the context node is not in a tree that is rooted at a document node. This is because a leading / or // in a path expression is an abbreviation for an initial step that includes the clause treat as document-node(). |
| ACTION | None |