Can't run application (pub get failed (server unavailable) -- attempting retry 4 in 8 seconds... )

[LinArcX]

Hi. i can launch the emulator(:CocList FlutterEmulators), but it can't run the application (flutter.run command) and i get this error:

pub get failed (server unavailable) -- attempting retry 4 in 8 seconds...

This is the log when i run: flutter run from terminal:
https://gist.github.com/LinArcX/5815974afafa8bd53408bdefbf1580ac

[iamcco]

Can't help, you should open issue on flutter repo.

[LinArcX]

Ok. it's a gradle issue. Due to sanctions in my country i should use vpn.
For anyone that maybe will have this issue in future, just update gradle.properties file located in two location:

1. <your-project-path>/android/gradle.properties
2. ~/.gradle/gradle.properties

And paste these lines into those mentioned files:

systemProp.socks.proxyHost=<address>
systemProp.socks.proxyPort=<port>

systemProp.http.proxyHost=<address>
systemProp.http.proxyPort=<port>

systemProp.https.proxyHost=<address>
systemProp.https.proxyPort=<port>