Error map
Untrusted Developer Could not launch "App": process launch failed: Security / Untrusted Developer
iOS · layer 1, On your device
Centre: this error. First ring: errors it is linked with (9). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.
Directly related (9)
adb: device unauthorized. This adb server's $ADB_VENDOR_KEYS is not set
The phone hasn’t accepted your computer’s RSA key for USB debugging yet.
Xcode: Failed to prepare device for development / iPhone is not available. Please reconnect the device
Xcode couldn’t set up the device — usually the device’s iOS version is newer than Xcode supports, Developer Mode is off, or pairi…
Unable to Install "App": This app cannot be installed because its integrity could not be verified
iOS rejected the app because its signature doesn’t validate for this device — expired/revoked certificate, ad-hoc profile without…
Provisioning profile "x" doesn't include signing certificate "Apple Development: Name (ID)"
The profile was created with a different certificate than the one installed in your keychain.
Command CodeSign failed with a nonzero exit code (errSecInternalComponent / resource fork, Finder information not allowed)
codesign failed — the keychain is locked (CI/SSH), the private key is inaccessible, or files carry extended attributes that can’t…
adb: no devices/emulators found / error: device not found
adb can’t see any connected device or running emulator.
Provisioning profile "x" doesn't include the currently selected device
The development profile doesn’t list this iPhone’s UDID, so Xcode can’t install the build on it.
Signing for "App" requires a development team. Select a development team in the Signing & Capabilities editor
No Apple developer team is selected for the target, so Xcode can’t sign the app.
Failed to register bundle identifier: The app identifier "com.x" cannot be registered to your development team because it is not available
Another developer team already owns that bundle identifier, so Xcode can’t create it for your team.
Two steps away (20)
Android: INSTALL_FAILED_UPDATE_INCOMPATIBLE
An app with the same package name but a different signing key is already installed on the device.
INSTALL_FAILED_INSUFFICIENT_STORAGE: Failure [INSTALL_FAILED_INSUFFICIENT_STORAGE]
The device or emulator doesn’t have enough free internal storage to install the APK.
INSTALL_FAILED_TEST_ONLY: installPackageLI
The APK is marked testOnly (built by Android Studio’s Run button), so normal installs refuse it.
Swift: No such module 'X' (module not found)
Xcode can’t find a Swift package, pod or framework you import.
Undefined symbol(s) for architecture arm64 — linker command failed with exit code 1
The linker can’t find the implementation of a symbol your code uses — a missing framework/library, a file not in the target, or a…
ITMS-90725: SDK version issue — This app was built with the iOS 17.x SDK. All iOS apps submitted to the App Store must be built with the iOS 18 SDK or later
App Store Connect requires uploads to be built with a recent Xcode/iOS SDK (raised every spring).
Google Sign-In: com.google.android.gms.common.api.ApiException: 10 (DEVELOPER_ERROR)
Google Sign-In is misconfigured — the app’s package name or SHA-1/SHA-256 signing fingerprint isn’t registered in Google Cloud/Fi…
NSUnknownKeyException: this class is not key value coding-compliant for the key x
A storyboard/XIB has a connection to an outlet or action that no longer exists in the class (renamed or deleted), or the view’s c…
unable to dequeue a cell with identifier Cell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard
The table/collection view was asked for a reusable cell identifier that was never registered.
Xcode: No signing certificate "iOS Development" found
Xcode can’t find a valid code-signing certificate + private key for the selected team in your keychain.
Cloudflare Error 526: Invalid SSL Certificate
With SSL mode Full (strict), the origin’s certificate is expired, self-signed, or doesn’t match the hostname.
Let’s Encrypt / Certbot: Challenge failed for domain example.com — Invalid response from http://example.com/.well-known/acme-challenge/x: 404
Let’s Encrypt couldn’t verify you control the domain — the HTTP-01 challenge file wasn’t served, or DNS points elsewhere.
! [remote rejected] main -> main (shallow update not allowed)
You pushed from a shallow clone to a remote that doesn’t accept shallow history.
remote: Permission to owner/repo.git denied to github-actions[bot]. fatal: unable to access … The requested URL returned error: 403
A GitHub Actions workflow tried to push but the GITHUB_TOKEN doesn’t have write permission.
npm ERR! `npm ci` can only install packages when your package.json and package-lock.json are in sync
package-lock.json doesn’t match package.json, so npm ci refuses to install.
INSTALL_FAILED_USER_RESTRICTED: Install canceled by user (Xiaomi/MIUI, Oppo, Vivo)
The phone’s manufacturer layer blocked installs over USB — Xiaomi/MIUI, Oppo/ColorOS and Vivo require extra developer settings.
adb server version (41) doesn't match this client (39); killing...
Two different adb binaries are running — e.g. Android Studio’s SDK adb and another one on PATH (Homebrew, Genymotion, older SDK).
ActivityNotFoundException: Unable to find explicit activity class; have you declared this activity in your AndroidManifest.xml?
An Intent targets an Activity that isn’t declared in the manifest, or an implicit intent has no app to handle it.
SwiftUI Preview: Cannot preview in this file — the preview crashed / failed to build
Xcode Previews couldn’t build or run the view — compile errors elsewhere, a crash in preview data, or preview-specific environmen…
xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun
The Xcode Command Line Tools are missing or broken — typical right after a macOS update.
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