Invalid options object. dev server has been initialized using an options object that does not match the api schema. – options.allowedhosts[0] should be a non-empty string.

When you encounter the error message “invalid options object. dev server has been initialized using an options object that does not match the api schema. – options.allowedhosts[0] should be a non-empty string.”, it means that the configuration for the development server does not meet the required format.

The specific issue is with the “allowedhosts” property in the options object. According to the API schema, the value for “allowedhosts” should be a non-empty string. This means that it should not be an empty value or null.

To resolve this error, you need to provide a valid value for the “allowedhosts” property. Here is an example of how you can correct the options object:

        
const options = {
    allowedhosts: "localhost",
    // other configuration options
};

// Initialize the dev server with the corrected options object
initializeDevServer(options);
        
    

In the above example, “localhost” is used as the value for the “allowedhosts” property. You can replace it with the appropriate domain or IP address that you want to allow as hosts for the development server.