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Editorial Team
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Editorial Team
Asked: June 1, 20262026-06-01T16:35:45+00:00 2026-06-01T16:35:45+00:00

I am very new to iOS development, I have an app all set and

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I am very new to iOS development, I have an app all set and ready to be distributed, but I seem to get this error every single time I run the application on my DEVICE only, the iOS simulator works just fine. Heres the full error:

Application failed codesign verification. The signature was invalid, contains disallowed entitlements, or it was not signed with an iPhone Distribution Certificate. (-19011)

Here’s the entire log:

Validate "/Users/masonsocha/Library/Developer/Xcode/DerivedData/Multibrowser-brgeiknbjgrywwehhohafjwxjqnk/Build/Products/App Store-iphoneos/Multibrowser.app"
    cd /Users/masonsocha/Desktop/Apps/MultiBrowser
    setenv PATH "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    setenv PRODUCT_TYPE com.apple.product-type.application
    /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/Validation "/Users/masonsocha/Library/Developer/Xcode/DerivedData/Multibrowser-brgeiknbjgrywwehhohafjwxjqnk/Build/Products/App Store-iphoneos/Multibrowser.app"

warning: Application failed codesign verification.  The signature was invalid, contains disallowed entitlements, or it was not signed with an iPhone Distribution Certificate. (-19011)
Executable=/Users/masonsocha/Library/Developer/Xcode/DerivedData/Multibrowser-brgeiknbjgrywwehhohafjwxjqnk/Build/Products/App Store-iphoneos/Multibrowser.app/Multibrowser
codesign_wrapper-0.7.10: using Apple CA for profile evaluation
AssertMacros: trust_result == kSecTrustResultUnspecified,  file: codesign_wrapper.c, line: 594
AssertMacros: profile,  file: codesign_wrapper.c, line: 918
codesign_wrapper-0.7.10: Failed to load provision profile from: /Users/masonsocha/Library/Developer/Xcode/DerivedData/Multibrowser-brgeiknbjgrywwehhohafjwxjqnk/Build/Products/App Store-iphoneos/Multibrowser.app/embedded.mobileprovision
 - (null)

I have already tried shortening the length of the project name, that did not help, I am currently using OSX Lion, on Xcode 4.3.2. I have spent all night pulling my hair out, please help!

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  1. Editorial Team
    Editorial Team
    2026-06-01T16:35:47+00:00Added an answer on June 1, 2026 at 4:35 pm

    I had the exact same issue..

    Go to Keychain Access

    1. Verify that you have your Public and Private keys set up correctly. This is a good reference https://developer.apple.com/legacy/library/technotes/tn2250/_index.html

    2. I had previously adjusted my Keychain Certificate Preferences to make Outlook work but that pretty much screwed up XCode code signing..

    After I set these to the “best attempt” setting (see screenshot) validation worked fine

    enter image description here

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