1、Unable to find image 'scrapinghub/portia:latest' locally
Usually appear "Unable to find image 'scrapinghub / portia: latest' locally" when, dockers will automatically help us pull image, when it does not help us solve, we can manually pull.
Enter docker pull scrapinghub / portia can be.
If the response error daemon appears, ip is a problem, specifically refer to: https://segmentfault.com/a/1190000016083023?utm_source=tag-newest
