CMLT-543 — Incorrect CML path construction
CML path token must or must not contain an index. Either you are referencing a repeatable node without any index (or name, in case of repeatable sections), or you are referencing a non-repeatable node with an index.
If you are trying to display target node according to the path printed in an error message, you probably misspelled it.
If you are trying to use a path in some configuration directive, check the path format according to the cml(8) manual page or by hint of C3H. The exact CML path to the configuration node where the error occurs (interactive case) or line and character number (file case) is printed in the following CMLT-549-E message.