Flet build Error

Python Help
1

Hello,

I’m encountering an SSL certificate verification error when trying to build an APK using flet build apk on macOS. Here are the details:

Error Message:

ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1066) urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate>

Environment:

  • macOS 14.7.5
  • Python 3.14
  • Flet latest version
  • Flutter 3.27.4 (attempting to install)

What I’ve Tried:

  1. Running /Applications/Python\ 3.*/Install\ Certificates.command
  2. Manual Flutter installation via git
  3. Disabling SSL verification temporarily
  4. Using Python 3.11 instead of 3.14
  5. Checking internet connection and trying with VPN

Full Error Log:

[Attach the complete error output you shared]

The error occurs specifically when Flet tries to download Flutter during the build process. I would appreciate any guidance on how to resolve this certificate verification issue or alternative methods to build the APK.

Thank you for your assistance.

(I’m Russian)