I’ve been stuck on this error for like 8 hours. I ...

# compose

[Robert Menke]

I’ve been stuck on this error for like 8 hours. I have a simple component

@Composable
fun EmailTextField() {
    val viewModel = viewModel<AuthenticationViewModel>()
    val text: String by viewModel.email.observeAsState("")
    TextField(
        value = text,
        onValueChange = viewModel::setEmail,
        label = { Text(text = "What's your email address?") },
        placeholder = { Text(text = "<mailto:[e-mail]|[e-mail]>") },
        keyboardType = KeyboardType.Email,
        modifier = frameFillWidth(60.dp)
    )
}

The context it’s called in is this:

@Composable
fun SignInEmailView() {
    SingleInputLayout(
        onBackClicked = {},
        onNextClicked = {},
        children = {
            EmailTextField()
        }
    )
}

and I get the error:

e: java.lang.IllegalArgumentException: Unbound type parameters are forbidden: [Unbound private symbol org.jetbrains.kotlin.ir.symbols.impl.IrTypeParameterSymbolImpl@124a0920, Unbound private symbol org.jetbrains.kotlin.ir.symbols.impl.IrTypeParameterSymbolImpl@6e295b2d]

I’ve been able to isolate this error to the EmailTextField view and when I comment it out the error goes away. I’ve tried reproducing in a sample project but have been unable to do so. Does anything in the example I’ve provided seem off?

compose: 1.0.0-alpha04
kotlin: 1.4.10

[allan.conda]

try

onValueChange = { viewModel.setEmail(it) },

[allan.conda]

Or it’s probably the viewmodel declaration, you could try providing it outside a composable

[Robert Menke]

Hmm I’ll try passing the view model in directly

[Robert Menke]

Nope, still no luck there

[allan.conda]

Are you on a pure compose project? Could be databinding

[allan.conda]

or kotlin synthetics

[Robert Menke]

Ya this is a brand new project created with compose. I’m not using synthetics. Is this a known issue with data binding @allan.conda?

[allan.conda]

Yes, I encountered the same issue

[Robert Menke]

How did you solve it?

[allan.conda]

If it’s a brand new project, you shoudn’t need data binding.
I think updating agp and AS to at least alpha10 fixes the issue?

[Robert Menke]

Oh got it I thought you were referring to LiveData. What is AS?

[Denis Sakhapov]

I believe AS here means Android Studio