Unresolved Reference: mockwebserver

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'
}

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.