title: Error while waiting for device: Could not start AVD. Can I skip enabling VT-x BIOS and HAXM?
body: <p>I am newbie to Android and Gradle. I have checked out source code from <a href="https://github.com/nostra13/Android-Universal-Image-Loader" rel="nofollow noreferrer">https://github.com/nostra13/Android-Universal-Image-Loader</a>. Also I have installed all latest versions of Android studio and gradle just today. Since the gradle version requires build tools version as 26.0.2 I have commented the line</p>
  
  <pre><code>//buildToolsVersion "23.0.2"
  </code></pre>
  
  <p>so that it takes now version 26.0.2 and earlier encountered error- "Failed to find Build Tools revision 26.0.2" is gone.</p>
  
  <p>I created AVD in android studio and tried running sample app from above github repository and it's suggesting to Enable VT-x BIOS. I do not know why VT-x BIOS is required or why Intel HAXM is required. I do not know whether enabling VT-x BIOS or installing HAXM would harm my computer. Hence I did not enable VT-x BIOS and not installed HAXM yet.</p>
  
  <p>Can anyone guide me to get rid of below error where no other meaningful trace is shown on gradle console as you can see in the attachment.</p>
  
  <p>Error while waiting for device: Could not start AVD</p>
  
  <p>Attached both screenshots displaying the AVD and the error. Is there any way without enabling the VT-x BIOS or Intel HAXM. Can this step be skipped and will I be able to run this sample app? I want to keep this as the last alternative of enabling BIOS or HAXM. Has anyone tried running this sample app?</p>
  
  <pre><code>[![enter image description here][2]][2]
  [![enter image description here][3]][3]
  [![enter image description here][4]][4]
  [![enter image description here][5]][5]
  </code></pre>