How can I edit the error message?

[Seo-yul]

I am running a page that provides the api I created to others.
How to use api is provided by using swagger-ui and automated swagger doc.

However, when I haven't registered doc yet, I show the following message.
Unable to render this definition The provided definition does not specify a valid version field.

This is a right message. But I want to provide a friendly message. For example, "It's a service that we haven't provided yet."

code

I'm using the vue to provide it.

SwaggerUIBundle({
                spec: data,
                dom_id: '#swagger-ui',
                deepLinking: false,
                presets: [
                    SwaggerUIBundle.presets.apis,
                    SwaggerUIBundle.SwaggerUIStandalonePreset
                ],
                plugins: [
                    SwaggerUIBundle.plugins.DownloadUrl
                ]
            })

I searched for this, but I could only find a way to fix the error. I want to just edit the message.
How can I do?

Thank you !