flutter doctor --android-licenses proxy server error

Question

I've recently downloaded android sdk when I ran flutter doctor it complained and said Android license status unknown. I've ran flutter doctor --android-licenses as it said and I had this error

Error: The proxy server URL extracted from HTTP_PROXY or HTTPS_PROXY environment 
variable could not be parsed. Either specify the correct URL or unset the environment 
variable.
 java.net.MalformedURLException: no protocol: 127.0.0.1:56885
    at java.base/java.net.URL.<init>(URL.java:645)
    at java.base/java.net.URL.<init>(URL.java:541)
    at java.base/java.net.URL.<init>(URL.java:488)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.<init>(SdkManagerCliSettings.java:470)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.createSettings(SdkManagerCliSettings.java:152)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCliSettings.createSettings(SdkManagerCliSettings.java:134)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:58)
    at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:49)

Note: I've already installed Android SDK Command-Line Tools

Any recommmendations how to fix this issue?

Answer 1

In your flutter command line run Get-ChildItem Env:
This will list all your local environment variables.

Make sure that 'HTTP_PROXY' and 'HTTPS_PROXY' variables are in that list.
Then run Remove-Item -Path Env:http_proxy and Remove-Item -Path Env:https_proxy to delete them