how to use a proxy connection with android studio -

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i'm trying run "hello world" application in android studio. connection via proxy. when try run "hello world app", android studio show me next error:

error running prueba: gradle project sync failed. please fix project , try again.

if configure in: "file/setting -> http proxy" , next put proxy configuration, error next:

error:could not 'http://jcenter.bintray.com/com/android/tools/build/gradle/0.12.2/gradle-0.12.2.pom'. received status code 407 server: proxy authentication required ( isa server requires authorization fulfill request. access web proxy filter denied. ) <a href="toggle.offline.mode">enable gradle 'offline mode' , sync project</a>

how can fix error?

there error indicates proxy authentication needed. authenticate proxy server go file->setting->http proxy, check box proxy authentication , enter credentials there. also, click check connection button test connection successful.


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