خطای sync شدن گرید موقع ایجاد برنامه در اندروید استودیو 3.1.1

اندروید 3.1.1 رو نصب کردم (گریدل 4.4)
اما نیم ساعت با شیلتر شکن جون میکنه ولی باز آخر sync نمیشه (به نظرم به نسخه appcompat ربط داره)
من این خط رو
اینو به 2.0.3 / 2.1.1 تغییر دادم ولی باز مشابه همین خطا ها داد
گریدل

apply plugin: 'com.android.application'

android {

    compileSdkVersion 27

    defaultConfig {

        applicationId "com.androiddev.exampleapp"

        minSdkVersion 17

        targetSdkVersion 27

        versionCode 1

        versionName "1.0"

        testInstrumentationRuer "android.support.test.ruer.AndroidJUnitRue  r"

    }

    buildTypes {

        release {

            minifyEnabled false

            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'

        }

    }

    buildToolsVersion '27.0.3'



    buildscript {

        repositories {

            jcenter()

            google()

            maven { url 'http://repo1.maven.org/maven2' }

            maven { url 'http://jcenter.bintray.com' }

            maven { url "https://maven.google.com" }

            maven { url "https://jitpack.io" }

        }

        dependencies { classpath 'com.android.tools.build:gradle:3.1.0' }

    }

}



dependencies {

    implementation fileTree(include: ['*.jar'], dir: 'libs')

    implementation 'com.android.support:appcompat-v7:27.0.2'

    implementation 'com.android.support:design:27.0.2'

    implementation 'com.android.support.constraint:constraint-layout:1.0.2'

    implementation 'com.android.support:support-vector-drawable:27.0.2'

    testImplementation 'junit:junit:4.12'

    androidTestImplementation 'com.android.support.test:ruer:1.0.1'

    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' }

این ارور

Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:appcompat-v7:27.0.2.Open File

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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:design:27.0.2.

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Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve com.android.support:support-vector-drawable:27.0.2.

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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support.test:ruer:1.0.1.

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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support.test.espresso:espresso-core:3.0.1.

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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:27.0.2.

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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support:design:27.0.2.

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Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve com.android.support:support-vector-drawable:27.0.2.

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Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:27.0.2.

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Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve com.android.support:design:27.0.2.

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Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve com.android.support:support-vector-drawable:27.0.2.

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Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve junit:junit:4.12.

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Unable to resolve dependency for ':app@release/compileClasspath': Could not resolve com.android.support:appcompat-v7:27.0.2.

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Unable to resolve dependency for ':app@release/compileClasspath': Could not resolve com.android.support:design:27.0.2.

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Unable to resolve dependency for ':app@release/compileClasspath': Could not resolve com.android.support:support-vector-drawable:27.0.2.

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Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve com.android.support:appcompat-v7:27.0.2.

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Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve com.android.support:design:27.0.2.

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Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve com.android.support:support-vector-drawable:27.0.2.

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Unable to resolve dependency for ':app@releaseUnitTest/compileClasspath': Could not resolve junit:junit:4.12.

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