Jetpack Compose PreviewActivity is not an activity subclass or alias

Asked Jul 24 '21 at 07:27

Active Aug 15 '21 at 13:13

Viewed 927 times

As I am exploring JetPack Compose and Tooling for it, I came across the wonderful PreView feature of it. Although I can see the preview in Split and Design window, when tried to deploy it in an emulator, I found this error.

androidx.compose.ui.tooling.preview.PreviewActivity is not an activity subclass or alias

I am using

Android Studio Arctic Fox| 2020.3.1 RC1
activityComposeVersion = "1.3.0-rc01"
composeVersion = "1.0.0-rc02"
kotlinVersion = "1.5.10"

I was trying to deploy preview of GradientTintedIconButtonPreview()

@Preview
@Composable
fun SquareComposablePreview() {
    Text("Hello World")
}

@Preview
@Composable
fun ComposablePreview() {
    Text("Hello World")
}

These two Composable is identical. For SquareComposablePreview the preview runs without an issue, but for ComposablePreview is am getting the error.

Am I doing something wrong of there are issue with the tool !

edited Aug 15 '21 at 13:13

Bennik2000

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asked Jul 24 '21 at 07:27

S Haque

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Are you using kotlin 1.5.10? – Gabriele Mariotti Jul 24 '21 at 08:33
yes, kotlin 1.5.10 – S Haque Jul 24 '21 at 08:48
I get the same error when I use the deploy icon in the editor gutter, while deploying via the deploy icon in the preview works. – jns Jul 26 '21 at 02:50
See this question: [Jetpack compose can't preview after updating to 1.0.0-rc01](https://stackoverflow.com/questions/68224361/jetpack-compose-cant-preview-after-updating-to-1-0-0-rc01/68412956#68412956) – Rob Meeuwisse Jul 26 '21 at 09:11
The solution didn't worked for me. I can see the preview, but can't run them on emulator. – S Haque Jul 31 '21 at 08:50

Jetpack Compose PreviewActivity is not an activity subclass or alias

0 Answers0