I have created a training module with two tests which was fine until I renamed the slides and added a close button. Any idea how I could find the error:

The module could not be opened.
Line: 365
Pos: 136
An invalid character was found in the text content.

[:confused:]

I have opened the 1.xlm in Excel and got the message that there is an invalid character but also the line number and the position and the line content as well. It was quite easy to edit the file in wordpad looking for the beginning of that line. There was what seemed to be an additional cr/lf in the file. I deleted it and courselab was able to oben the file again.[:)]Hope this will help you if you should have the same problem.