Q:

ADB in android studio

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.

And this was shown in Help | Show log
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 

A:

First you shout sync successfully , in case you can`t sync successfully?
Follow this steps,

Download latest version of gradle  .
gradle download link
After downloading it extract new folder.
Then open android studio. Go to file->settings->Build,Execution,Deployment->Gradle.
Then choose Use local gradle distribution and in the Gradle home give path of the folder where we have extracted file.
Finally restart your android studio.

Otherwise it will be occur from offline work in Global Gradle Settings , if its checked please UnCheck it. Have a nice day.

