lateinit property retrofit has not been initialized

This error message typically means that you are attempting to use a property or object that has not been properly initialized. In this case, it specifically refers to the "retrofit" property.

To fix the issue, you need to make sure that you initialize the retrofit object before attempting to use it. You can do this by creating a new instance of the Retrofit class and assigning it to the retrofit property.

For example:

lateinit var retrofit: Retrofit

...

// Initialize the retrofit object
retrofit = Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build()

...

// Use the retrofit object
val service = retrofit.create(MyService::class.java)

By properly initializing the retrofit object, you should be able to avoid the "lateinit property retrofit has not been initialized" error.