title: No layout manager attached; Skipping layout
body: <p><strong>Code :</strong>
  rv = (RecyclerView) findViewById (R.id.recyclerview);</p>
  <pre><code>    LinearLayoutManager linearLayoutManager = new LinearLayoutManager (this, LinearLayoutManager.VERTICAL ,false);
      CustomRVAdapter customRVAdapter = new CustomRVAdapter (getApplicationContext (),R.layout.custom_rv_row,new StudentList ().getDefaultStudentList ());
      rv.setAdapter (customRVAdapter);
  </code></pre>
  <p><strong>ERROR</strong>
  Accessing hidden method Landroid/os/Trace;-&gt;traceCounter(JLjava/lang/String;I)V (light greylist, reflection)</p>
  <p>E/RecyclerView: No layout manager attached; skipping layout</p>
  <p>I/le.assignment_: ProcessProfilingInfo new_methods=1577 is saved saved_to_disk=1 resolve_classes_delay=8000</p>