Error: bad argument type: stringp nil

[nck5678]

Hi,

We have pre-defined macros built by developers (somewhere in past), among which for one particular macro I am facing this issue.

The error after executing the command says "Bad argument type: stringp nil"

The macro is used to create a WMF file (which is used for another tool).

I don't have much knowledge of programming but need to diagnose and resolve this issue, can anyone guide me where to look into or how to resolve this issue?  

[hak_vz]

Attach macro definition or whole file. It is hard to tell without seeing the code.

Some string is missing and that causes the error.