I get this error all the time when trying to create a new Viewer or even when trying to update a Viewer.
The Viewer Builder shows the icons fine and all so I have no idea what's going on...
Anyone have any ideas? I'm really at a loss right now.
I suppose you are downloading a built-in single edition app? If so, make sure you are downloading the developer-viewer.ipa or the distibution-viewer.zip from the same machine from where the app was built. Because, when you download the file, it looks for the assets and .zip folio on your machine and bundle it for you on your desktop. When this assets are missing because you are downloading from another machine, the downloaded.ipa/zip will return incorrect file size.
Thank you for your reply!
I now realise I should have been more specific.
I don't even make it to the downloading point, I get the error when I hit the "Submit build" button.
And it's for a multi-issue Viewer. ;-)
Are you customizing the toolbar and custom icons? Or any .zip file imported for the HTML fonts? If so, check to make sure all those .zip file are packaged correctly. When you zip you assets from the machine, make sure not to zip on the folder than contains the assets but go down one more level and selecting all the assets, right click to compress and zip the assets.