Thanks both. I did have the file in the files-folder but the case-ness of the name was different DoleSurvey.txt vs doleSurvey.txt.
After making them the same it works fine. Thanks for a quick reply.
I have not used SYNC before. It seems like a fast way to add files to the files folder.
I should mention that in my B4APages project, this file is in the Shared Files folder. I'm not sure why it did work in Debug mode.
Edit: FYI
@DonManfred, the case-ness error also affected the zip file. I just looked and the file, while present before zipping, is indeed missing in the zip file.