Step 7. Multi-Container Apps -> Starting MySQL -> Unable to Start a MySQL container and attach it to the network! about getting-started HOT 1 CLOSED

Solved:

The reason you're getting this error is because it's trying to run each line as an individual command instead of one docker command.

On windows instead of \ for a new line use ^

docker run -d ^
--network todo-app --network-alias mysql ^
-v todo-mysql-data:/var/lib/mysql ^
-e MYSQL_ROOT_PASSWORD=secret ^
-e MYSQL_DATABASE=todos ^
mysql:5.7
The command above is the same as this one line command:

docker run -d --network todo-app --network-alias mysql -v todo-mysql data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=secret -e MYSQL_DATABASE=todos mysql:5.7

from getting-started.