The self-documentation information was invalid (e.g., improper LonMark definitions). This error means that the self documentation information specified in the xif file or device is invalid (e.g., improper LonMark definitions). This can be for example: missing mandatory NV in a functional block, missing mandatory CP, conflicting member numbers, etc
You might want to create the interface of your device using the NodeBuilder code wizard as this will automatically create good Neuron C 2 and LonMark compliant code. You do not need to manually add self-documentation for LonMark compliancy when using the Code Wizard.