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android studio - Flutter App Running Error: Dart can not be opened, Developer can not be verified after upgrading to Catalina

I was using the latest version of Android Studio IDE for creating flutter apps. But when I upgraded from Mojave to Catalina and tried to open my flutter code on IDE it gave me an error saying:

Dart can not be opened because the Developer can not be verified

What is the reason behind the error and how can I solve the issue?

Do I have to install flutter and relative development tools from scratch again or is there any other way to resolve the issue?

enter image description here

question from:https://stackoverflow.com/questions/58387606/flutter-app-running-error-dart-can-not-be-opened-developer-can-not-be-verified

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Do this steps and repeat until allow all you need and stop notifications. Solve for me.

  1. On your Mac, choose Apple menu > System Preferences, click Security & Privacy, then click General.
  2. Click the lock icon to unlock it, then enter an administrator name and password.
  3. Select the sources from which you’ll allow software to be installed: There should be a button that says "Allow anyway". If not make sure you've cancelled the error dialog.

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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