title: ADB in android studio
body: <p>I'm learning to use Android Studio. I've downloaded Android Studio Canary 4.1 from developer.android.com. When I started to run a template, I got this error (shown in pictures below). 
  I hope someone can help me with this.</p>
  
  <p><a href="https://i.stack.imgur.com/IftEX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IftEX.png" alt="enter image description here"></a></p>
  
  <p>And this was shown in Help | Show log</p>
  
  <pre><code>Consult IDE log for more details (Help | Show Log) (1 m 0 s 845 ms) 
  2020-04-23 07:36:09,826 [ 240277]   INFO - roid.tools.ndk.GradleWorkspace - Updating model took 0.04s 
  2020-04-23 07:36:09,882 [ 240333]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:10,121 [ 240572]   WARN - openapi.vfs.newvfs.VfsImplUtil - LocalFileSystem failed to extract root path '' from '//help.gradle.org' (original '//help.gradle.org') 
  2020-04-23 07:36:10,214 [ 240665]   INFO - ge.ExternalProjectsDataStorage - Save external projects data in 47 ms 
  2020-04-23 07:36:10,229 [ 240680]   WARN - com.intellij.util.xmlb.Binding - no accessors for class org.jetbrains.kotlin.idea.scripting.gradle.GradleScriptInputsWatcher$Storage 
  2020-04-23 07:36:10,238 [ 240689]   WARN - com.intellij.util.xmlb.Binding - no accessors for class org.jetbrains.kotlin.idea.core.script.configuration.utils.ScriptClassRootsStorage 
  2020-04-23 07:36:10,261 [ 240712]   INFO - rationStore.ComponentStoreImpl - Saving Project (name=My Application, containerState=ACTIVE, componentStore=C:\Users\ASUS\AndroidStudioProjects\MyApplication) XDebuggerManager took 12 ms 
  2020-04-23 07:36:10,384 [ 240835]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:11,391 [ 241842]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:11,892 [ 242343]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:12,392 [ 242843]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:12,899 [ 243350]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  2020-04-23 07:36:13,403 [ 243854]   INFO - .deployment.AsyncDevicesGetter - adb not found 
  </code></pre>