unable to configure the Docker daemon with file /etc/docker/daemon.json: invalid character '"' after object key:value pair

This error typically occurs when there is a syntax error in the `/etc/docker/daemon.json` file. The specific error message suggests that there is an invalid character (`"`) after an object key-value pair in the JSON file.

To resolve this issue, you should check the contents of the `daemon.json` file and make sure it follows the proper JSON syntax. Specifically, ensure that all the key-value pairs are separated by commas and that there are no extra or misplaced characters.

Here's an example of a correct `daemon.json` file:

{
  "key1": "value1",
  "key2": "value2",
  "key3": "value3"
}

Make sure to save the file after making any modifications, and then restart the Docker daemon for the changes to take effect.