[FIXED] How to solve error “FAILURE:Build failed with an exception” in android studio?

Question 1

Go to settings/build, execution, Deployment/ gradle/ and uncheck offline work and run build again

Question 2

If all the think is best but not work you add this line

defaultConfig {
applicationId “com.sendpulse.sendpulse”

minSdkVersion 15

targetSdkVersion 21

multiDexEnabled true //Add me//

}

Question 3

FAILURE: Build failed with an exception.

What went wrong:
Execution failed for task ‘:app:mergeDebugResources’.

Could not resolve all files for configuration ‘:app:_internal_aapt2_binary’.
Could not resolve com.android.tools.build:aapt2:3.6.0-6040484.
Required by:
project :app
No cached version of com.android.tools.build:aapt2:3.6.0-6040484 available for offline mode.
No cached version of com.android.tools.build:aapt2:3.6.0-6040484 available for offline mode.
Try:
Run with –stacktrace option to get the stack trace. Run with –info or –debug option to get more log output. Run with –scan to get full insights.
Get more help at https://help.gradle.org

BUILD FAILED in 267ms
5 actionable tasks: 1 executed, 4 up-to-date

Solution 1 :