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Error Codes

This page includes a list of various error codes you may receive while using AltStore.

AltServer Errors

(1) Could not connect to AltServer. / There was an error connecting to the device.

com.rileytestut.AltServer
This means that AltServer is having trouble connecting to your iOS device. Try plugging your device directly into your computer if it is not already.
If you still have issues, please refer to the Troubleshooting Guide.

(2) Lost Connection to AltServer.

com.rileytestut.AltServer
This means that the connection was dropped between AltServer and your iOS device. Make sure your device and computer are connected to the same WiFi network and try again.
If you still have issues, please refer to the Troubleshooting Guide.

(3) AltServer could not find this device.

com.rileytestut.AltServer
This means that AltServer had trouble locating your iOS device either over USB or via WiFi. Make sure your device and computer are connected to the same WiFi network and that your device is trusted and try again.
If you still have issues, please refer to the Troubleshooting Guide.

(4) Failed to write app data to device.

com.rileytestut.AltServer
This means that AltServer tried to write a file to your device and could not or was interrupted. Make sure your device and computer are connected to the same WiFi network and that your device is trusted and try again.
If you still have issues, please refer to the Troubleshooting Guide.

(5) AltServer received an invalid request.

com.rileytestut.AltServer
This means that AltServer received a request it did not understand. This may be because you are running an outdated AltServer version, so please make sure to update to the latest version.

(6) AltServer sent an invalid response.

com.rileytestut.AltServer
This means that AltStore received a response from AltServer it did not understand. This may be because you are running an outdated AltStore version, so please make sure to update to the latest version.

(7) The app is invalid.

com.rileytestut.AltServer
This means that the app your were attempting to install was found to be in an invalid format. If you continue to have issues, try downloading from alternate source.

(8) An error occurred while installing the app.

com.rileytestut.AltServer
This means that iOS rejected the app you were attempting to install. Make sure to use a version compatible your iOS version.

(9) Cannot activate more than 3 apps with a non-developer Apple ID.

com.rileytestut.AltServer
This means that you do not have enough available App IDs to install the requested App. For more information, refer to our App IDs page.

(10) Your device must be running iOS 12.2 or later to install AltStore.

com.rileytestut.AltServer
This means that you will need to update your phone to the minimum iOS version required before you can continue to use AltStore.

(11) AltServer does not support this request.

com.rileytestut.AltServer
This means that AltServer received a request it did not recognize. You may be running an outdated AltServer version, so be sure to update.

(12) Received an unknown response from AltServer.

com.rileytestut.AltServer
This means that AltStore received a response from AltServer it did not recognize. You may be running an outdated AltStore version, so be sure to update.

(13) The provided anisette data is invalid.

com.rileytestut.AltServer
This means that the Apple ID information AltStore used to try to sign in was invalid because of an unknown issue. Make sure you are using the latest version of iCloud if you are on Windows and that your date/time are accurate.

(14) AltServer could not connect to Mail plug-in. (macOS)

com.rileytestut.AltServer
This means that AltServer could not find the Mail plug-in either because it is not enable or you are not running the mail app on your Mac. Make sure the mail app is running on your Mac and that the plug-in is enabled. For more help, check the Mail Plug-In page in the install guide.

(15) Could not find provisioning profile.

com.rileytestut.AltServer
This means that the provisioning profile needed to install this app could not be located. This is most likely a problem with AltStore itself, so please message support or to our Patreon inbox.

(16) An error occurred while removing the app.

com.rileytestut.AltServer
This means that there was an issue while removing an app. There are a number of different issues so make sure to check your error log for a more specific message on your issue.

(100) The Requested app is not currently running on the device.

com.rileytestut.AltServer
This means that you tried to enable JIT without the requested app running in the foreground. Make sure to launch the app and have it running before you enable JIT.

(101) The disk is incompatible with [App].

com.rileytestut.AltServer
This means that the developer disk being used is not compatible with the app. Try updating to the latest version of AltStore and AltServer to make sure the correct one is enabled.

Apple Errors

(0) An unknown error occurred.

com.rileytestut.ALTAppleAPI
Updated information coming soon

(1) The provided parameters are invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon

(2) Incorrect Apple ID or password.

com.rileytestut.ALTAppleAPI
This means that the Apple ID credentials you used were invalid. Make sure the username and password are correct.
If you still have issues, you can also try creating a new Apple ID to use with AltStore.

(3) You are not a member of any development teams.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(4) An app-specific password is required. You can create one at appleid.apple.com.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(5) This device's UDID is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(6) This device's UDID is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(7) The certificate request is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(8) The certificate request is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(9) There is no certificate with the requested serial number for this team.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(10) The name for this app is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(11) The bundle identifier for this app is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(12) The bundle identifier for this app has already been registered.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(13) There is no App ID with the requested identifier on this team.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(14) You may only register 10 App IDs every 7 days.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(15) The provided app group is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(16) App group does not exist.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(17) The identifier for the requested provisioning profile is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(18) There is no provisioning profile with the requested identifier on this team.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(19) This account requires signing in with two-factor authentication.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(20) Incorrect verification code.

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Updated information coming soon.

(21) Failed to perform authentication handshake with server.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

(22) The provided anisette data is invalid.

com.rileytestut.ALTAppleAPI
Updated information coming soon.

Windows Errors

(1100) Your session has expired. Please log in.
NSURLErrorDomain
  1. 1.
    Make sure iTunes is closed.
  2. 2.
    Go to Program Data -> Apple Computer -> iTunes -> ADI -> delete the files
  3. 3.
    Start iTunes
  4. 4.
    Retry installing AltStore