Problem with @action class decorator- missing context parameter

[TomMarks]

I've scaffolded out a basic project with "streamdeck create" and gotten the code to start compiling, but I get an error message when compiling. Below is an excerpt from the top of increment-counter.ts file created by streamdeck create.

import { action, KeyDownEvent, SingletonAction, WillAppearEvent } from "@elgato/streamdeck";

/**
 * An example action class that displays a count that increments by one each time the button is pressed.
 */
@action({ UUID: "com.test.test.increment" })
export class IncrementCounter extends SingletonAction<CounterSettings> {

The error returned by the typescript compiler is below. This must be a configuration problem, but can't find any guidance anywhere. Any ideas would be welcomed!

src/plugin.ts → com.test.test.sdPlugin/bin/plugin.js...
(!) [plugin typescript] src/actions/increment-counter.ts (6:1): @rollup/plugin-typescript TS1238: Unable to resolve signature of class decorator when called as an expression.
  The runtime will invoke the decorator with 1 arguments, but the decorator expects 2.
E:/OneDrive/Dev/test/src/actions/increment-counter.ts:6:1
 expression.
  The runtime will invoke the decorator with 1 arguments, but the decorator expects 2.

6 @action({ UUID: "com.test.test.increment" })
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  node_modules/@elgato/streamdeck/dist/index.d.ts:3024:116
    3024 declare function action(definition: ActionDefinition): <T extends Constructor<SingletonAction<object>>>(target: T, context: ClassDecoratorContext) => {
                                                                                                                            
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    An argument for 'context' was not provided.

tsconfig.json
package.json

[GeekyEggo]

Hi Tom, apologies for the delay — so we can best help with your issue, it would be good to know a bit more about which versions you're running locally. Specifically, it would be good to know:

• The version of Node.js
  • Found by running node -v in terminal.
• The versions of @elgato/streamdeck and typescript the plugin project is using
  • These can be found by running npm list --depth=0 in the cwd of your plugin project.
• The version of Stream Deck app.
  • Accessible within the preferences pane.

[TomMarks]

No worries- Thanks for getting back to me. I'm excited to get this working!

Node version: v22.9.0
@elgato/cli: 0.3.2
@elgato/streamdeck: 0.3.0
Streamdeck App: 6.7.3 (21005)

[GeekyEggo]

Those versions look okay; we would recommend building with Node.js v20 as this is distributed with Stream Deck app, however testing locally with v22.9.0, that doesn't look to be the issue.

Could I ask what version of TypeScript you're using?

[GeekyEggo]

ah, I think I've found the issue — could I ask you to remove "experimentalDecorators": true from your tsconfig and try again 🤞

[TomMarks]

Hey GE- that did it. Thanks!