Error Codes
This page is currently not fully accurate to how SideStore works, as this is based on AltStore's Error Codes page. Some info is still correct, but please don't rely on this word for word. Make sure to ask in our Discord server for help if you need it.
SideStore Errors
(1000) An unknown error occurred.
AltStore.OperationError
This means that SideStore ran into an unexpected error. Please check our Troubleshooting Guide, and you can reach out to us directly if the issue persists.
(1001) The operation returned an unknown result.
This means that SideStore ran into an unexpected error. Please check our Troubleshooting Guide, and you can reach out to us directly if the issue persists.
(1002) The operation was cancelled.
AltStore.OperationError
This means that the performed action was stopped. Please try again.
(1003) The operation timed out.
AltStore.OperationError
This means that SideStore ran into problems trying to complete the requested action. Please try again and check our Troubleshooting Guide for additional help. You can reach out to us directly if the issue persists.
(1004) You are not signed in.
AltStore.OperationError
This means that you must enter your Apple ID information in the settings tab to do the requested action.
(1005) The app could not be found.
AltStore.OperationError
This means that AltStore could not locate the file to download or install, most likely because the file does not exist at the provided URL.
(1006) AltStore could not determine this device's UDID.
AltStore.OperationError
This means that SideStore couldn't read the device UDID embedded by AltServer when installing SideStore. Make sure you're installing SideStore with the latest AltServer version and not via another method.
(1007) This app is in an invalid format.
AltStore.OperationError
This means the app you're trying to install is not a standard .ipa. Try downloading the app from another location.
(1008) Invalid parameters.
AltStore.OperationError
This means an internal error occured and SideStore couldn't provide the necessary information to perform the requested task. Please try again and check our Troubleshooting Guide for additional help. You can reach out to us directly if the issue persists.
(1009) You cannot register more than 10 App IDs within a 7-day period.
AltStore.OperationError
This means that you have reached the maximum amount of App IDs available. Please check the App IDs in the My Apps tab to see when they will expire.
(1010) There are no AltStore sources.
AltStore.OperationError
This means an internal error occured and SideStore is unable to fetch changes for any Sources you've added. Please try again and check our Troubleshooting Guide for additional help. You can reach out to us directly if the issue persists.
(1011) AltStore was denied permission to launch the app.
AltStore.OperationError
This means SideStore couldn't launch a sideloaded app because you tapped "Cancel" on the "AltStore wants to open [app]" alert, or because you still need to trust your Apple ID in Settings.
(1012) AltStore's shared app group could not be accessed.
AltStore.OperationError
This means SideStore was not able to access the directory where app backups are stored. Make sure you're installing SideStore with the latest AltServer version and not via another method.
(1200) AltServer could not be found.
AltStore.OperationError
This means that SideStore is having trouble discovering AltServer on your local network. Make sure you're connected to the same Wi-Fi network as your PC/Mac running AltServer, or try connecting your device to your computer via USB.
(1201) A connection to AltServer could not be established.
AltStore.OperationError
This means that SideStore is having trouble connecting to AltServer on your PC/Mac. Make sure you have Wi-Fi sync enabled, and otherwise you may try plugging in your device directly via USB.
(1202) The connection to AltServer was dropped.
AltStore.OperationError
This means that SideStore's connection to AltServer on your PC/Mac was interrupted. Make sure you have Wi-Fi sync enabled, and otherwise you may try plugging in your device directly via USB.
AltServer / SideServer Errors
(0) Exception Error
AltServer.ExceptionError
This error can appear for many reasons, and below are a few that you might see (this is not an exhaustive list).
"vector too long"
This means that Windows Defender is blocking your request. You may need to first disable Real-Time Protection on Windows in order for SideStore to work as expected.
(1999) Underlying Error
AltServer.ServerError
This means that AltServer ran into an unknown error. We recommend reaching out to our support channels if the issue persists.
(2000) Unknown Error
AltServer.ServerError
This means that AltServer ran into an unknown error. We recommend reaching out to our support channels if the issue persists.
(2001) Could not connect to AltServer. / There was an error connecting to the device.
AltServer.ServerError
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.
(2002) Lost Connection to AltServer.
AltServer.ServerError
This means that the connection was dropped between AltServer and your iOS device. Make sure your device and computer are connected to the same Wi-Fi network and try again.
If you still have issues, please refer to the Troubleshooting Guide.
(2003) AltServer could not find this device.
AltServer.ServerError
This means that AltServer had trouble locating your iOS device either over USB or via Wi-Fi. Make sure your device and computer are connected to the same Wi-Fi network and that your device is trusted and try again.
If you still have issues, please refer to the Troubleshooting Guide.
(2004) Failed to write app data to device.
AltServer.ServerError
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 Wi-Fi network and that your device is trusted and try again.
If you still have issues, please refer to the Troubleshooting Guide.
(2005) AltServer received an invalid request.
AltServer.ServerError
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.
(2006) AltServer sent an invalid response.
AltServer.ServerError
This means that SideStore received a response from AltServer it did not understand. This may be because you are running an outdated SideStore version, so please make sure to update to the latest version.
(2007) The app is invalid.
AltServer.ServerError
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.
(2008) An error occurred while installing the app.
AltServer.ServerError
This means that iOS rejected the app you were attempting to install. Make sure to use a version compatible your iOS version.
(2009) Cannot activate more than 3 apps with a non-developer Apple ID.
AltServer.ServerError
This means that you have reached the maximum amount of sideloaded apps you can have with a Free Developer Account. Apple limits the amount of sideloaded apps you can have with a free account, and to remove the limit you need to sign up for a Paid Developer account at developer.apple.com.
(2010) Your device must be running iOS 12.2 or later to install AltStore.
AltServer.ServerError
This means that you will need to update your phone to the minimum iOS version required before you can continue to use AltStore.
(2011) AltServer does not support this request.
AltServer.ServerError
This means that AltServer received a request it did not recognize. You may be running an outdated AltServer version, so be sure to update.
(2012) Received an unknown response from AltServer.
AltServer.ServerError
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.
(2013) The provided anisette data is invalid.
AltServer.ServerError
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.
(2014) AltServer could not connect to Mail plug-in. (macOS)
AltServer.ServerError
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.
(2015) Could not find provisioning profile.
AltServer.ServerError
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.
(2016) An error occurred while removing the app.
AltServer.ServerError
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.
(2100) The Requested app is not currently running on the device.
AltServer.ServerError
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.
(2101) The disk is incompatible with [iOS version].
AltServer.ServerError
This means that the developer disk required to enable JIT is not compatible with your device's OS version. Make sure you're running the latest version of AltStore and AltServer, and try again later.
Apple Developer Errors
(3000) An unknown error occurred.
AltStore.AppleDeveloperError
Updated information coming soon
(3001) The provided parameters are invalid.
AltStore.AppleDeveloperError
Updated information coming soon
(3002) Incorrect Apple ID or password.
AltStore.AppleDeveloperError
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 SideStore.
(3003) An app-specific password is required. You can create one at appleid.apple.com.
AltStore.AppleDeveloperError
Updated information coming soon.
(3004) You are not a member of any development teams.
AltStore.AppleDeveloperError
Updated information coming soon.
(3005) This device's UDID is invalid.
AltStore.AppleDeveloperError
Updated information coming soon.
(3006) This device is already registered with another ID.
AltStore.AppleDeveloperError
Updated information coming soon.
(3007) The certificate request is invalid.
AltStore.AppleDeveloperError
Updated information coming soon.
(3008) There is no certificate with the requested serial number for this team.
AltStore.AppleDeveloperError
Updated information coming soon.
(3009) The name for this app is invalid.
AltStore.AppleDeveloperError
SideStore couldn’t register an App ID with Apple because the app name contains non-ASCII characters. You can try downloading from another source.
(3010) The bundle identifier for this app is invalid.
AltStore.AppleDeveloperError
Updated information coming soon.
(3011) The bundle identifier for this app has already been registered.
AltStore.AppleDeveloperError
Updated information coming soon.
(3012) There is no App ID with the requested identifier on this team.
AltStore.AppleDeveloperError
Updated information coming soon.
(3013) You may only register 10 App IDs every 7 days.
AltStore.AppleDeveloperError
Updated information coming soon.
(3014) The provided app group is invalid.
AltStore.AppleDeveloperError
Updated information coming soon.
(3015) App group does not exist.
AltStore.AppleDeveloperError
Updated information coming soon.
(3016) The identifier for the requested provisioning profile is invalid.
AltStore.AppleDeveloperError
Updated information coming soon.
(3017) There is no provisioning profile with the requested identifier on this team.
AltStore.AppleDeveloperError
If you are seeing this error, it's likely due to a recent server-side change made by Apple. Please see the following announcement with more info: https://twitter.com/altstoreio/status/1638599316762664974?s=20
(3018) This account requires signing in with two-factor authentication.
AltStore.AppleDeveloperError
Updated information coming soon.
(3019) Incorrect verification code.
AltStore.AppleDeveloperError
Updated information coming soon.
(3020) Failed to perform authentication handshake with server.
AltStore.AppleDeveloperError
Updated information coming soon.