Cydia Impactor: Error Line 37

Enter your Apple ID and your newly generated app-specific password.

But Marco noticed something else. A commented-out block just above line 37. Saurik’s own note, dated 2018:

In 99% of cases, the is caused by Apple’s security layers, specifically Two-Factor Authentication (2FA) or Two-Step Verification . cydia impactor error line 37

If you are reading this, you have likely been staring at a cryptic log window inside Cydia Impactor, frozen in frustration. You’ve tried to sideload your favorite IPA file (like Unc0ver, Electra, or Delta), only to have the process crash with a vague reference to

: Cydia Impactor now largely requires a paid Apple Developer account to function properly. Enter your Apple ID and your newly generated

Drag and drop your IPA file into the Sideloadly window, enter your Apple ID credentials, and click "Start."

For users who continue to face this error despite using App-Specific Passwords, the solution lies in the evolution of the tools themselves. Since the discontinuation of the original Cydia Impactor, open-source alternatives such as AltStore, Sideloadly, and iOS App Signer have emerged. These modern utilities were built with Apple’s current security standards in mind. They handle the 2FA handshake differently—often integrating directly with iTunes or utilizing local server protocols to manage the installation—thereby eliminating the "Line 37" issue entirely. Saurik’s own note, dated 2018: In 99% of

: The tool has not been frequently updated to keep pace with Apple's security changes, leading to widespread "Xcode 7.3" or server-side communication errors. Recommended Solutions and Workarounds

Download the latest release compatible with your operating system (Windows, macOS, or Linux).