Inflearn Community Q&A

class MainViewModel : ViewModel() {
    val data = mutableStateOf("Hello")
}

class MainActivity : ComponentActivity() {
    private val viewModel by viewModels<MainViewModel>()
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContent {
            Column(
                modifier = Modifier.fillMaxSize(),
                verticalArrangement = Arrangement.Center,
                horizontalAlignment = Alignment.CenterHorizontally
            ) {
                Text(
                    viewModel.data.value,
                    fontSize = 30.sp
                )
                Button(onClick = {
                    viewModel.data.value = "World"
                }) {
                    Text("변경")
                }
            }
        }
    }
}

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위 코드를 실행하니 아래오류가 발생하네요

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