I have just upgraded (i.e., installed a full new version) my Android Studio from 1.5 to 2.0. The upgrade seemed to go smoothly, but I am having trouble with my project when I open it, when Gradle is syncing my project.

After Gradle sync runs for a couple of minutes I get this error:

```
Failed to sync Gradle project MyProject
    Unknown host 'jcenter.bintray.com'. You may need to adjust the proxy settings in Gradle.
    Error:  Enable Gradle "offline mode' and sync project
            Learn about configuring HTTP proxies in Gradle

```

So, I click on the link that says:

```
Enable Gradle "offline mode' and sync project

```

Then Gradle spins for a second or two, and I now have this message:

```
Failed to sync Gradle project MyProject
    Error: No cached version of com.android.tools.build:gradle:1.3.0 available for offline mode.
           Disable Gradle 'offline mode' and sync project

```

So, I click on this link:

```
Disable Gradle 'offline mode' and sync project

```

And I am back to my first error again.

The machine I am working on is 100% off line. It does not have, nor will it ever have any kind of network connection whatsoever. I figure I need to disable some kind of check that requires the internet, but I am not sure what. Is this fixable, or do I have to downgrade back to Android Studio 1.5?

**UPDATE**

I am also getting this error message:

```
Gradle sync failed: Unknown host 'services.gradle.org'. You may need to adjust the proxy settings in Gradle.

```