Flutter doctor command but nothing happen

Question

I use a MacBook Pro and install flutter, but when I type flutter doctor, it doesn't respond (about 10 minutes passed).

flutter doctor

this issue same to me, but I don't install Mamp software.

Solution 1

If on Windows and flutter doctor is not responding , it means it needs administrative privileges. Just go to search bar , find Command prompt and run it as administrator. That should do.

Solution 2

try to run command : flutter maybe you get some error, and fix it. i also get error:

The term 'Unblock-File' is not recognized as the name of a cmdlet, function, sc
ript file, or operable program. Check the spelling of the name, or if a path wa
s included, verify that the path is correct and try again.
At line:1 char:13
+ Unblock-File <<<<  -Path 'C:\src\flutter/bin/internal/update_dart_sdk.ps1'; &
 'C:\src\flutter/bin/internal/update_dart_sdk.ps1'
    + CategoryInfo          : ObjectNotFound: (Unblock-File:String) [], Comman
   dNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

Flutter requires PowerShell 5.0 or newer.
See https://flutter.dev/docs/get-started/install/windows for more.
Building flutter tool...
Running pub upgrade...
The current Dart SDK version is 2.1.0-dev.9.4.flutter-f9ebf21297.

Because flutter_tools requires SDK version >=2.2.2 <3.0.0, version solving
  failed.

and i fix it.

Solution 3

Without sounding silly, are you connected online? This happens to me when I'm disconnected from the Internet.

Also, what happens when you do this?

> flutter upgrade

Does it still lock up then, or does it actually check the version before eventually continuing and running flutter doctor?

Comments

[jiahong.dong]

I do what i can do, but useless！ ”reinstall system“ it work!

[Bob Small]

That did not work for me. Same issue. Dart SDK blows up as soon as I run any Flutter commands

[Eddie Eddie Eddie]

@BobSmall, what version are you on (flutter --version)? Are you able to reinstall flutter, or download the latest version (go to directory above where flutter is installed and executing git clone https://github.com/flutter/flutter.git)?

[Bob Small]

@Eddie Eddie Eddie. Flutter 1.22.4 • channel stable • github.com/flutter/flutter.git Framework • revision 1aafb3a8b9 (13 days ago) • 2020-11-13 09:59:28 -0800 Engine • revision 2c956a31c0 Tools • Dart 2.10.4