Unresolved Reference: mockwebserver - android-studio

Question

I'm writing a test suite with mockwebserver. I entered all of the dependencies from the official github page. Every time I try to run the test I receive Unresolved reference: mockwebserver
There's no option to import. The lettering isn't red on the import. Android Studio doesn't prompt anything. There are no other errors aside from ones related to the unresolved reference.
Screenshot:
build.gradle
plugins {
id 'com.android.application'
id 'kotlin-android'
id("org.jetbrains.kotlin.android.extensions")
}
android {
compileSdk 31
useLibrary("android.test.runner")
useLibrary("android.test.base")
useLibrary("android.test.mock")
defaultConfig {
applicationId "com.example.moviespotter"
minSdk 21
targetSdk 31
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
buildFeatures {
viewBinding = true
compose true
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
composeOptions {
kotlinCompilerExtensionVersion compose_version
kotlinCompilerVersion '1.5.21'
}
kotlinOptions {
jvmTarget = '1.8'
}
tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
kotlinOptions {
jvmTarget = '1.8'
}
}
packagingOptions {
resources {
excludes += '/META-INF/{AL2.0,LGPL2.1}'
}
}
}
dependencies {
implementation 'androidx.core:core-ktx:1.6.0'
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
implementation "androidx.compose.ui:ui:$compose_version"
implementation "androidx.compose.material:material:$compose_version"
implementation "androidx.compose.ui:ui-tooling-preview:$compose_version"
implementation 'androidx.activity:activity-compose:1.3.1'
implementation 'androidx.test.espresso:espresso-idling-resource:3.1.1'
testImplementation 'junit:junit:4.13'
testImplementation 'com.squareup.okhttp3:mockwebserver3:5.0.0-alpha.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
androidTestImplementation "androidx.compose.ui:ui-test-junit4:$compose_version"
androidTestImplementation 'androidx.test:rules:1.4.0'
androidTestImplementation 'androidx.test:runner:1.4.0'
debugImplementation "androidx.compose.ui:ui-tooling:$compose_version"
implementation 'com.squareup.retrofit2:retrofit:2.7.0'
implementation 'com.squareup.retrofit2:converter-gson:2.7.0'
implementation 'com.squareup.okhttp3:okhttp:4.3.1'
implementation 'com.google.code.gson:gson:2.8.5'
implementation 'androidx.cardview:cardview:1.0.0'
implementation 'androidx.recyclerview:recyclerview:1.1.0'
implementation 'com.github.bumptech.glide:glide:4.10.0' //Glide
implementation "androidx.fragment:fragment-ktx:$fragment_version"
implementation "androidx.fragment:fragment-ktx:$fragment_version"
implementation "io.coil-kt:coil-compose:1.3.1"
annotationProcessor 'com.github.bumptech.glide:compiler:4.10.0'
androidTestImplementation 'com.jakewharton.espresso:okhttp3-idling-resource:1.0.0'
}

Answer 1

Since this is in androidTest, it should be
androidTestImplementation 'com.squareup.okhttp3:mockwebserver3:5.0.0-alpha.2'
Also mixing 5.0.0-alpha.2 and 4.3.1 is a world of hurt.

Answer 2

I found the culprit.
When adding the dependency to the build.gradle file it should read implementation.
Change From:
testImplementation 'com.squareup.okhttp3:mockwebserver3:5.0.0-alpha.2'
To:
implementation 'com.squareup.okhttp3:mockwebserver3:5.0.0-alpha.2'