Google Aerial View API, Video not found: No 3d imagery

According to the Google Aerial View API, If the video doesn’t yet exist, then the API returns a 404 status code. The instruction is to generate a new video by calling renderVideo.

The video hasn’t been previously rendered, and therefore is not yet in Google’s database.

{
  "error": {
    "code": 404,
    "message": "Video not found.",
    "status": "NOT_FOUND"
  }
}

But what does No 3d imagery mean?

{
  "error": {
    "code": 404,
    "message": "Video not found: No 3d imagery."
    "status": "NOT_FOUND"
  }
}