我正在使用 Google AppEngine 运行应用程序。我现在正在尝试设置 Google Cloud Datalab。我启用了计算引擎。当我尝试部署时，我在日志中收到以下错误：
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Jan 26 21:48:20 datalab-deploy-main-20160126-21-46-14 startupscript: Verifying that Managed VMs are enabled and ready.
Jan 26 21:48:22 datalab-deploy-main-20160126-21-46-14 startupscript: If this is your first deployment, this may take a while...#015If this is your first deployment, this may take a while.../#015If this is your first deployment, this may take a while...-#015If this is your first deployment, this may take a while...done.
Jan 26 21:48:22 datalab-deploy-main-20160126-21-46-14 startupscript: WARNING: If this is your first deployment, please try again.
Jan 26 21:48:22 datalab-deploy-main-20160126-21-46-14 startupscript: ERROR: (gcloud.preview.app.deploy) Server responded with code [400]:
Jan 26 21:48:22 datalab-deploy-main-20160126-21-46-14 startupscript: Bad Request Unexpected HTTP status 400.
Jan 26 21:48:22 datalab-deploy-main-20160126-21-46-14 startupscript: Failed Project Preparation (app_id='s~prjectId'). App Engine service account has insufficient permissions for project. Developer or owner required.
有什么想法该怎么做？