TextField(
    value = textValue,
    keyboardType = KeyboardType.Phone,
    imeAction = ImeAction.Done,
    onValueChange = { textValue = it },
    label = { Text("Enter Your Phone Number") },
    placeholder = { Text(text = "904353455") },
    onImeActionPerformed = { imeAction: ImeAction, softwareKeyboardController: SoftwareKeyboardController? ->
        if (imeAction == ImeAction.Done) {
            if(textValue.text.isEmpty()){
                return@TextField
            }

        }
    },
    modifier = Modifier.fillMaxWidth()
)

I want to set error on this text field for phone number, but i don't find any errortext, please let me know how can i set the error on textfield

You can try to use a material text field, they should have the error fields included

@Joost Klitsie i had gone through the documentation, but i hadn't find any useful information there

I was expecting that to be in there to be honest

even after making composable, how can i reference this view to set error

You don't reference a view in compose, that is the whole point of compose 🙂 You should create a state that contains the error, and then update the view from that state. As soon as the user types something, you will have an onValueChange callback which you can use to update the original state. This could be an example:

data class ViewState(
    val textInput: String?,
    val error: String?
)

@ExperimentalAnimationApi
@Composable
fun SomeComposable() {
    val viewState = remember { mutableStateOf(ViewState("", null)) }
    OutlinedTextViewWithError(
        value = viewState.value.textInput ?: "",
        onValueChange = { newValue -> 
            viewState.value = viewState.value.copy(
                textInput = newValue,
                error = if (newValue.contains("@")) "Don't use '@' character" else null)
        },
        error = viewState.value.error
    )

}

@ExperimentalAnimationApi
@Composable
fun OutlinedTextViewWithError(value: String, onValueChange: (String) -> Unit, error: String?) {
    val isError = error != null
    Column {
        OutlinedTextField(
            value = value,
            onValueChange = onValueChange,
            isErrorValue = isError,
            label = {})
        AnimatedVisibility(visible = isError) {
            Text(text = error ?: "", color = MaterialTheme.colors.error, style = MaterialTheme.typography.caption) // Choose the appropriate style
        }
    }

}