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我試圖在新的Android項目中創建Espresso UI測試，但遇到以下問題。Android Espresso：無法解析符號AndroidJUnit4.class
如果我試圖創建一個空的測試類：
import android.content.Intent;
import android.support.test.rule.ActivityTestRule;
import android.support.test.runner.AndroidJUnit4;
import android.test.ActivityInstrumentationTestCase2;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import static android.support.test.espresso.Espresso.onView;
import static android.support.test.espresso.assertion.ViewAssertions.matches;
import static android.support.test.espresso.matcher.ViewMatchers.withId;
import static android.support.test.espresso.matcher.ViewMatchers.withText;
@RunWith(AndroidJUnit4.class)
public class LoginActivityTest extends ActivityInstrumentationTestCase2<LoginActivity> {
}
我總是收到此錯誤信息：
cannot resolve symbol AndroidJUnit4.class
而且幾乎所有的進口庫標記爲未使用。
的build.gradle文件包含以下內容：
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.0"
defaultConfig {
applicationId "com.some.thing.xxx"
minSdkVersion 14
targetSdkVersion 23
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
lintOptions {
abortOnError false
}
packagingOptions {
exclude 'LICENSE.txt'
}
}
repositories {
mavenCentral()
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
maven { url "https://jitpack.io" }
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.0'
compile 'com.google.android.gms:play-services:7.8.0'
compile 'com.mcxiaoke.volley:library:1.0.18'
compile 'com.orhanobut:logger:1.11'
// App dependencies
compile 'com.android.support:support-annotations:23.0.0'
// TESTING DEPENDENCIES
androidTestCompile 'com.android.support.test:runner:0.3'
// Set this dependency to use JUnit 4 rules
androidTestCompile 'com.android.support.test:rules:0.3'
// Set this dependency to build and run Espresso tests
androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2'
// add this for intent mocking support
androidTestCompile 'com.android.support.test.espresso:espresso-intents:2.2'
// add this for webview testing support
androidTestCompile 'com.android.support.test.espresso:espresso-web:2.2'
// Set this dependency to build and run UI Automator tests
androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.1'
androidTestCompile 'com.android.support.test.espresso:espresso-contrib:2.2'
}
如果我把這些設置我的其他測試項目它的作品，所以我不知道什麼可以是錯的？
我已經按照這個教程：」
http://www.vogella.com/tutorials/AndroidTestingEspresso/article.html
而且我已經嘗試通過以下SO問題來解決它： Cannot resolve symbol 'AndroidJUnit4'
但是，如果沒有運氣
許多感謝您的任何意見。
的Android { testBuildType「調試」 }爲我工作就像一個魅力。 – suprith