iPhone application doesn't install from anywhere else other than the dev machine

I created an iPhone application. I am distributing it with the ad hoc method. It install开发者_开发问答s just fine from the iTunes installed on the machine where the app was created. Anywhere else the iTunes just gives the error 'Resources have been modified'.

Please help.

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It's possible it is being changed. You should distribute your app as an .ipa file, this will shield it from changes.

Create a folder called Payload and place your .app folder inside of it. Zip up the Payload folder using normal compression, then rename the file with a .ipa extension.

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In addition to tewha's answer:

One thing to note is that if you want the app's artwork to appear in iTunes (rather than a generic app icon), you need to place a file called iTunesArtwork (with no extension) into the zip file on the same level as the Payload folder (not in it). This is actually a jpeg file of a 512x512 image and this will appear in iTunes for the app. When I was converting folders, I didn't have the original images so I just left them off, the app works fine you just get the generic icon.