I'm trying to create documentation automatically. I'm using "Append VI list of SubVIs to report (path).vi" VI to add list of subvis to .doc file. Inside "Append VI list of SubVIs to report (path).vi" is subVI called "Append VI List of SubVIs to Report (refnum).vi". This subvi cause that error code as can be seen in attachment. The problem is that the name of 3D-surface object contain illegal characters. Why this object name is invalid ? Hierarcy can be seen in second attachment. Should I modify this subVI or is there any more sophisticated method to fix issue.
Windows does not accept : (colon) as a valid character, hence the error. To add to Mike's comments, use search and replace string function to replace it with something else like an underscore for example, before doing the "append to path" operation.