Insert page argument problem

Hello!

I am having a problem with the method insertPages.

this.insertPages ({

            nPage: pageArray[1],

            cPath: getField("filename").value

        });

This code is in a for loop and inserts the pages in the first iteration but stops the script right after and exits with:

InvalidArgsError: Invalid arguments.

Doc.insertPages:3:Console undefined:Exec

Has anyone encountered this error?

Any help is much appreciated!