Ijkplayer: Android Studio Import Project 'compileSdkVersion()'

[cutler]

every thing is ok!

but when finally imoprt to Android Studio, print this error:

Error:(21, 0) Gradle DSL method not found: 'compileSdkVersion()'
Possible causes:
The project 'ijkplayer' may be using a version of Gradle that does not contain the method.

My Build Enviroment:
Android Studio:1.2.2
root build.gradle file:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:1.2.3'

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

allprojects {
    repositories {
        jcenter()
    }
}
ext {
    compileSdkVersion "22"
    buildToolsVersion "22.0.1"
}

[bbcallen]

ext {
    compileSdkVersion = 22
    buildToolsVersion = "22.0.1"
}

[cutler]

i change "22"to22, print this error:

Error:(22) A problem occurred evaluating root project 'ijkplayer'.
> Could not find method compileSdkVersion() for arguments [22] on root project 'ijkplayer'.

[bbcallen]

ext {
    compileSdkVersion = 22
    buildToolsVersion = "22.0.1"
}

[cutler]

thx very much.

between compileSdkVersion and 20 , must use = .

i fixed it

[Rajes757]

same problem here,please help us

// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.0'

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

}
allprojects {
repositories {
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

android {
compileSdkVersion = 25
buildToolsVersion = "25.0.2"
}
dependencies {
}

[MasterSami1985]

please need help

android studio ver 3.1.3
Could not find property 'SdkVersion' on com.android.build.gradle.AppExtension_Decorated@6c9efbf9.
Open File

apply plugin: 'com.android.application'
apply plugin: 'com.google.gms.google-services'

android {
implementation SdkVersion 23
buildToolsVersion '27.0.3'

defaultConfig {
    applicationId "com.example.android.miwok"
    minSdkVersion 15
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

}

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
testimplementation 'junit:junit:4.12'
implementation 'com.android.support:appcompat-v7:23.3.0'
implementation 'com.android.support:support-v4:23.3.0'
implementation 'com.android.support:design:23.3.0'
implementation 'com.google.android.gms:play-services-auth:9.4.0'
}