Android Studio IDE emulator opens, but project is not running/Compling

Question

When I compiled my Android Studio IDE project, the emulator had opened, but project didn't run.I am using the latest version of Android IDE and I uninstalled Android IDE couple of times, and then again reinstalled it. Still, the problem persists.

Please help me fixing this problem.

When I run my Android Studio IDE project, I got this message at Build window:

Could not find com.android.tools.build:aapt2:3.3.1-5013011.
Searched in the following locations:
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/google/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - file:/C:/Users/zunayeed/AppData/Local/Android/Sdk/extras/android/m2repository/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
  - https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011.pom
  - https://jcenter.bintray.com/com/android/tools/build/aapt2/3.3.1-5013011/aapt2-3.3.1-5013011-windows.jar
Required by:
    project :app

Answer 1

I think you missed google repository on your gradle file. To use AAPT2, make sure that you have a google() dependency in your build.gradle file, as shown here:

buildscript {
    repositories {
    google() // here
    jcenter()
}
dependencies {
   classpath 'com.android.tools.build:gradle:3.2.0-alpha12'

  }
} 
allprojects {
  repositories {
  google() // and here
  jcenter()
 }

Source: https://developer.android.com/studio/releases/#aapt2_gmaven