Defaultemail@example.com is the required filesize, and it must have dimensions of 640x1136.
Make sure this file is included in your IPA in the top level directory. A good way to check is to rename "myapp.ipa" to "myapp.zip" and unzip it and look for it in the top level of the folder structure.
To get Flash Builder to include it in the IPA, put it in a folder that is included in your flash builder source tree (I use the folder "system" and make sure it's added separately to the project), and make sure you have it checked in the package contents box:
Also, make sure you have "copy non-embedded files to output folder" checked on this screen:
Hope that helps!
thanks for help. it is ok now.
glad to help!