By default Android Studio uses Gradle to build Android projects. This means Android Studio always needs a connection to the internet to check for and retrieve dependencies. If you’re developing from behind a proxy (as I am) then you’ll have to explicitly tell Gradle the proxy details to allow it to connect to its servers.
Steps to fix
- Navigate to the “.gradle” folder in your user directory (e.g. C:\Users\bob\.gradle)
- Create a “gradle.properties” file
- Edit the file to have the following contents (replacing your own values)
systemProp.http.proxyHost=<proxy_host> systemProp.http.proxyPort=<port> systemProp.http.proxyUser=<user> systemProp.http.proxyPassword=<password> systemProp.http.nonProxyHosts=*.nonproxyrepos.com|localhost
Gradle should then succeed on the next build.
Note – thanks go to Steve Hanson for these steps.
Update 08 Dec 2014 – As of the update to Android 1.0, these steps are not enough! I’ve documented the new definitive list in this post.