Retrofit error-Missing either @GET URL or @Url parameter
Solution 1:
It's much more semantically correct to use https://www.googleapis.com/youtube/v3/ as your base URL and then declare @GET("search/")
on your service method.
That said, if you really want your base URL to be the full path you can use @GET(".")
to declare that your final URL is the same as your base URL.