Android Studio报错：cannot resolve symbol recyclerview-蒲公英云

Android Studio报错：cannot resolve symbol recyclerview

短命女 2022-05-17 01:45 295阅读 0赞

Android Studio真是什么奇葩报错都有，今天建了个新项目，居然无缘无故出现：cannot resolve symbol recyclerview。自动提示中也没有RecyclerView，在java中导入包，

import android.support.v7.widget.RecyclerView;

也没有作用，还是不认。到stackover上找了一下，

https://stackoverflow.com/questions/39619788/recyclerview-cannot-resolve-symbol-errors-android-studio

根据上面的说法，更新了build.gradle(app)，如下

apply plugin: 'com.android.application'
android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.spacesoftwares.openglesdemo"
        minSdkVersion 21
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
    implementation 'com.android.support:recyclerview-v7:27.1.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}