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Android Google Play Services Interacting with Your API Writing Your UI Code with RecyclerView

Adnan Nazir
PLUS
Adnan Nazir
Courses Plus Student 607 Points

"type 'javax.security.auth.callback.Callback' does not have type parameters

I set up up the activeListing method with the callback included like so ... Callback callback ... but under I am getting the error "type 'javax.security.auth.callback.Callback' does not have type parameters". Did I import callback from the wrong package? I tried importing the one from com.squareup.picasso, but it gives me the same error about it not having type parameters. Any help would be appreciated, thanks

NOTE: When i import "import retrofit.Callback;" then we have multiple choices which one to select? I already import this "import javax.security.auth.callback.Callback;"

1 Answer

Kourosh Raeen
Kourosh Raeen
23,733 Points

The Api.java file should look like this:

package googleplayservices.samples.android.treehouse.com.recommendations.api;

import googleplayservices.samples.android.treehouse.com.recommendations.model.ActiveListings;
import retrofit.Callback;
import retrofit.http.GET;
import retrofit.http.Query;

public interface Api {

    @GET("/listings/active")
    void activeListings(@Query("includes") String includes,
                        Callback<ActiveListings> callback);
}