Could not get unknown property 'okhttpVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler

Question

Following dependencies are added inside build.gradle file for Implementing Retrofit API Call in My new Kotlin Project.

    implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"
    implementation "com.squareup.okhttp3:logging-interceptor:$okhttpVersion"
    implementation ("com.squareup.retrofit2:retrofit:$retrofitVersion"){
        exclude module: 'okhttp'
    }
    implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

After Syncing it will show an error mentioned below.

Could not get unknown property 'okhttpVersion' for object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

studio pointing error line is,

implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"

please give any Solution for it.

Answer 1

Define version value like

def okhttpVersion = "3.10.0"
def retrofitVersion = "2.4.0"
implementation "com.squareup.okhttp3:okhttp:$okhttpVersion"
implementation "com.squareup.okhttp3:logging-interceptor:$okhttpVersion"
implementation ("com.squareup.retrofit2:retrofit:$retrofitVersion"){
    exclude module: 'okhttp'
}
implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"

OR try to add hardcoded version of dependencies

implementation "com.squareup.okhttp3:okhttp:3.10.0"
implementation "com.squareup.okhttp3:logging-interceptor:3.10.0"
implementation ("com.squareup.retrofit2:retrofit:2.4.0"){
    exclude module: 'okhttp'
}
implementation "com.squareup.retrofit2:converter-gson:2.4.0"

don't forget to clean and rebuild...