Prompt Title: Docker image pull errors.

The error message you received suggests that the response returned from the Docker daemon is not in the expected format. Specifically, the error message mentions an "invalid character '<'", which could indicate that the response is actually an HTML document, rather than the expected JSON response.

One possible reason for this could be that the image you are trying to pull does not exist, or there is an issue with the repository that is hosting the image. To confirm this, you can try visiting the image's repository URL (in this case, "milvus.io/search-video-demo:v1") in your web browser and see if you get a valid response. If the page is not found or there is an error, it is likely that the image is not available or there is an issue with the repository.

If you are able to access the repository and the image is still not pulling, you may want to check if there are any network issues that may be preventing the Docker daemon from reaching the repository. You can try running other Docker commands that pull images from other repositories to see if they work as expected. Additionally, you may want to check if you have any firewall rules or proxy settings that could be blocking network traffic.

If you are still unable to pull the image, you may want to consider contacting the maintainers of the repository to ask for assistance.