postValue null

[soheilgk]

I followed your instructure but I get this error
Attempt to invoke virtual method 'void androidx.lifecycle.MutableLiveData.postValue(java.lang.Object)' on a null object reference
I checked everything but I couldn't find the problem

my code
`

class NewsViewModel(
private val newsRepository: NewsRepository
) : ViewModel() {

val breakingNews: MutableLiveData<Resource<NewsResponse>> = MutableLiveData()
private var breakingNewsPage = 1

init {
    getBreakingNews("us")
}

private fun getBreakingNews(countryCode: String) = viewModelScope.launch {
    breakingNews.postValue(Resource.Loading())
    val response = newsRepository.getBreakingNews(countryCode, breakingNewsPage)
    breakingNews.postValue(handleBreakingNewsResponse(response))
}

private fun handleBreakingNewsResponse(response: Response<NewsResponse>) : Resource<NewsResponse> {
    if(response.isSuccessful) {
        response.body()?.let { resultResponse ->
            return Resource.Success(resultResponse)
        }
    }
    return Resource.Error(response.message())
}

}

`

[soheilgk]

it worked :|