title: How to get string response from Retrofit2?
body: <p>I am doing android, looking for a way to do a super basic http GET/POST request. I keep getting an error:</p>
  
  <pre><code>java.lang.IllegalArgumentException: Unable to create converter for class java.lang.String
  </code></pre>
  
  <p>Webservice:</p>
  
  <pre><code>public interface WebService {
      @GET("/projects")
      Call&lt;String&gt; jquery();
  }
  </code></pre>
  
  <p>then in my java:</p>
  
  <pre><code>    Retrofit retrofit = new Retrofit.Builder()
          .baseUrl("https://jquery.org")
         // .addConverterFactory(GsonConverterFactory.create())
          .build();
  
      WebService service = retrofit.create(WebService.class);
      Call&lt;String&gt; signin = service.jquery();
  
      Toast.makeText(this, signin.toString(), Toast.LENGTH_LONG).show();
  </code></pre>
  
  <p>I'm literally just trying to query jquery.org/projects with a GET request and return the String that it responds with. What is wrong?</p>
  
  <p>If I try to implement a custom Converter (I've found a few examples online) it complains that I didn't implement the abstract method convert(F), which none of the examples do.</p>
  
  <p>Thanks.</p>