title: " ValueWarning: No supported index is available. Prediction results will be given with an integer index beginning at `start` "
body: <p>Why we are getting this error when we predict or forecast using Statsmodels <strong>&quot; SARIMAX &quot;</strong>?.
  I am just passing the start and end of Index and steps that need to take into consideration.</p>
  <pre><code>Either use the below line to execute: 
  
  results = model.fit()
  predictions= results.predict(start =train_size, end=train_size+test_size+(steps)-1)
  (Or)
  forecast_= results.forecast(steps=test_size-1)
  </code></pre>
  <p>Is there any proper way to neglect the warning message?</p>
  <p>**</p>
  <p>Want to understand in detail the warning. Hope will get it.</p>
  <p>**.</p>