未解决的参考：recyclerView

Question

I'm following this tutorial RecyclerView in Android Studio Tutorial and facing the Unresolved reference: recyclerview error. I think there is some problem in gradle file but I'm not able to fig it out.please help. complete gradle file as well as link to xml code is given below xml code

 plugins { id 'com.android.application' id 'kotlin-android' } android { compileSdk 30 defaultConfig { applicationId "com.example.newsapp" minSdk 21 targetSdk 30 versionCode 1 versionName "1.0" testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro' } } compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } kotlinOptions { jvmTarget = '1.8' } } dependencies { implementation 'androidx.core:core-ktx:1.7.0' implementation 'androidx.appcompat:appcompat:1.4.0' implementation 'com.google.android.material:material:1.4.0' implementation 'androidx.constraintlayout:constraintlayout:2.1.2' implementation 'androidx.recyclerview:recyclerview:1.2.1' testImplementation 'junit:junit:4.+' androidTestImplementation 'androidx.test.ext:junit:1.1.3' androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0' }

Answer 1

The tutorial is outdated. It uses synthetics, which is deprecated and can't be used anymore. Read here more about migrating from synthetics, or try to find a more recent tutorial:

Migrate from Kotlin synthetics to Jetpack view binding