I am having an issue in API Gateway that says " No integration defined for method" when I attempt to deploy

From the API Gateway setup page:

Specify the backend services that your API will communicate with. These are called integrations. For a Lambda integration, API Gateway invokes the Lambda function and responds with the response from the function. For HTTP integration, API Gateway sends the request to the URL that you specify and returns the response from the URL.

You need to setup what your API is accessing with that method.