<p dir="auto">Hi,</p>
<p dir="auto">I would like to install dart on my work computer, but there is a proxy, and i can't disable it.</p>
<p dir="auto">So when i write the command flutter it check for dart update and i got an error.</p>
<p dir="auto">Flutter doctor :</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="**C:\Users\g594841&gt;flutter doctor
Checking Dart SDK version...
Downloading Dart SDK from Flutter engine ead227f118077d1f2b57842a32abaf105b573b8
a...
Start-BitsTransfer : État HTTP 407 : l'authentification du proxy est demandée.
Au caractère C:\Program Files\flutter\bin\internal\update_dart_sdk.ps1:47 : 1
+ Start-BitsTransfer -


Source $dartSdkUrl -Destination $dartSdkZip
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [Start-BitsTransfer], Exc
   eption
    + FullyQualifiedErrorId : StartBitsTransferCOMException,Microsoft.Backgrou
   ndIntelligentTransfer.Management.NewBitsTransferCommand

Error: Unable to update Dart SDK. Retrying...

Attendre 2 secondes, appuyez sur CTRL+C pour quitter ...**"><pre class="notranslate"><code class="notranslate">**C:\Users\g594841&gt;flutter doctor
Checking Dart SDK version...
Downloading Dart SDK from Flutter engine ead227f118077d1f2b57842a32abaf105b573b8
a...
Start-BitsTransfer : État HTTP 407 : l'authentification du proxy est demandée.
Au caractère C:\Program Files\flutter\bin\internal\update_dart_sdk.ps1:47 : 1
+ Start-BitsTransfer -


Source $dartSdkUrl -Destination $dartSdkZip
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation : (:) [Start-BitsTransfer], Exc
   eption
    + FullyQualifiedErrorId : StartBitsTransferCOMException,Microsoft.Backgrou
   ndIntelligentTransfer.Management.NewBitsTransferCommand

Error: Unable to update Dart SDK. Retrying...

Attendre 2 secondes, appuyez sur CTRL+C pour quitter ...**
</code></pre></div>
<p dir="auto">it asks me to authantify the proxy, but i don't know the password. Is there a way to bypass this check and install dart by hand ?</p>
<p dir="auto">Thanks</p>
<p dir="auto">I met errors when running flutter doctor. It's related with proxy settings.</p>
<h2 dir="auto">Flutter Doctor</h2>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\CNFEHU1&gt;flutter doctor
Checking Dart SDK version...
Downloading Dart SDK 1.24.0-dev.6.7...
Start-BitsTransfer : HTTP status 407: Proxy authentication is required.
At C:\Users\CNFEHU1\Documents\GitHub\flutter\bin\internal\update_dart_sdk.ps1:4
4 char:19
+ Start-BitsTransfer &lt;&lt;&lt;&lt;  -Source $dartSdkUrl -Destination $dartSdkZip
    + CategoryInfo          : InvalidOperation: (:) [Start-BitsTransfer], Exce
   ption
    + FullyQualifiedErrorId : StartBitsTransferCOMException,Microsoft.Backgrou
   ndIntelligentTransfer.Management.NewBitsTransferCommand

Error: Unable to update Dart SDK. Retrying..."><pre class="notranslate"><code class="notranslate">Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\CNFEHU1&gt;flutter doctor
Checking Dart SDK version...
Downloading Dart SDK 1.24.0-dev.6.7...
Start-BitsTransfer : HTTP status 407: Proxy authentication is required.
At C:\Users\CNFEHU1\Documents\GitHub\flutter\bin\internal\update_dart_sdk.ps1:4
4 char:19
+ Start-BitsTransfer &lt;&lt;&lt;&lt;  -Source $dartSdkUrl -Destination $dartSdkZip
    + CategoryInfo          : InvalidOperation: (:) [Start-BitsTransfer], Exce
   ption
    + FullyQualifiedErrorId : StartBitsTransferCOMException,Microsoft.Backgrou
   ndIntelligentTransfer.Management.NewBitsTransferCommand

Error: Unable to update Dart SDK. Retrying...
</code></pre></div>