Error:Cause: buildToolsVersion is not specified

Question

I create a simple project and then I right-click on the project and then I use the make mudole app option. Now I have two build.gradle folders: 1-

Answer 1

Android Project > setting.gradle

include ':app' , ':xxx'

I imported one of module and this coused this error. I remove it is fixed.

include ':app'

Answer 2

Add buildToolsVersion to your build.gradle file this will solve your problem.

buildToolsVersion "27.0.1"

Gradle file code

 android{
          compileSdkVersion 27
          buildToolsVersion "27.0.1"
          useLibrary 'org.apache.http.legacy'
        }

Answer 3

Not really sure what the underlying problem was, but I found the solution in a concurrent problem that was occurring: https://stackoverflow.com/a/32490472/1544046

Essentially, I had to change my gradle target to use the wrapper and not a defined path. I've had it set to the Gradle Wrapper in the past, but it seems to revert from time to time without notice. Once I switched back and recompiled it worked fine.

In the project's settings: Build, Execution, Deployment->Build Tools->Gradle and select "Use default gradle wrapper".

Answer 4

The issue for me was that andorid-versionCode can only be integer value. in build.xml:

eg:android-versionCode="1"

It cannot be "1.1" etc... The error code is not helpful at all.

Answer 5

Check if android studio version in build.gradle is same as the one you are running.

buildscript {

   repositories {
       google()
       jcenter()
   }
 dependencies {
    classpath 'com.android.tools.build:gradle:3.0.0'


    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
  }
}   

In my case, I opened/imported the project created on android studio 2.3.3 in android studio 3 and i was able to get rid of this issue after updating the build.gradle with 3.0.0

Answer 6

in file... build.gradle(Project: XXX):

repositories{
     //put pluging repository here
     //e.g.:
     mavenCentral()
}
dependencies{
     //classpath to plugin here
     classpath 'com.XXXX.xXXxxXX.XXXX' 
}

in file.... build.gradle(Module: app)

//add on top:
apply plugin: 'com.YOUR.PLUGIN.XXX'