how to deploy golang app with dependencies to the app engine with gcloud?
<p>I have an app that uses "github.com/gorilla/mux" and I am able to deploy it with <code>goapp deploy</code>. But I cannot do the same with <code>gcloud preview app deploy</code> because I am facing this error: </p>

<pre><code>Beginning deployment...
Copying files to Google Cloud Storage...
Synchronizing files to [&lt;googlecloudsdk.api_lib.app.cloud_storage.BucketReference object at 0x10514e790&gt;].
File upload done.
Updating module [api]...failed.
ERROR: (gcloud.preview.app.deploy) Error Response: [9] Deployment contains files that cannot be compiled: Compile failed:
2016/03/22 09:06:40 go-app-builder: build timing: 1×6g (42ms total), 0×6l (0 total)
2016/03/22 09:06:40 go-app-builder: failed running 6g: exit status 1

api.go:29: can't find import: "github.com/gorilla/handlers"
</code></pre>

<p>I want to be able to do it because I need to deploy from travisCI on merge and I want to use service-client.json for authorisation. </p>

<p>Is there any way around it? </p>