[Bug] regeneratorRuntime is not defined with useAsyncTask

[Connor Dooley]

I want to use useAsyncTask like so:

const myAsyncTask = useAsyncTask(() => {
    return functionThatReturnsPromiseWithMyData('this is an argument')
})

but when I try to run this, I get Uncaught (in promise) ReferenceError: regeneratorRuntime is not defined

I am using vue 3.1.4, vite 2.4.1, and vue-concurrency 2.1.2

[Martin Malinda]

Strange. This should definitely not happen at least if the modern build is used where async await is not transpiled. I'll look into this tomorrow. Dne st 21. 7. 2021 19:50 uživatel Connor Dooley ***@***.***> napsal:

…

I want to use useAsyncTask like so: const myAsyncTask = useAsyncTask(() => { return functionThatReturnsPromiseWithMyData('this is an argument')}) but when I try to run this, I get Uncaught (in promise) ReferenceError: regeneratorRuntime is not defined I am using vue 3.1.4, vite 2.4.1, and vue-concurrency 2.1.2 — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#51>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACIHW6MIBZUWAIUZKCWEQHDTY4CFRANCNFSM5AYN3HJA> .

[nickngqs]

I'm getting this bug as well, with usePipeTask.

vite 2.1.3, vue 3.2.0, vue-concurrency 2.1.2

[Zyb Jared Valdez]

same behavior with usePipeTask.

vue@2.6.12
nuxt@2.15.6
vue-concurrency@2.1.2

[Martin Malinda]

Caused by developit/microbundle#708. I tried to update microbundle but ran into different errors afterwards. I'll give it another try when I have more time.

[Torleif Halseth]

Any updates on this @MartinMalinda?

[amrap030]

I have this error too in a vue 3 project. I also tried pasting your example from the test as shown below and still have the same error:

const addTask = useTask(function* (signal, a: number, b: number) {
  return yield a + b;
});
const add10Task = useTask(function* (signal, a: number) {
  return yield a + 10;
});
const add20Task = useTask(function* (signal, a: number) {
  return yield a + 20;
});
const pipeTask = useSequentialTask(addTask, add10Task, add20Task);

When i remove the last line, I get no errors. This makes the library unfortunately unusable for me.

[JT]

With Vue 3 & Vite I've been using the temporary fix of :

1. npm install regenerator-runtime
2. Adding import 'regenerator-runtime/runtime' at the top of main.ts

If you're using webpack/babel (ie Vue 2), you can also import it directly without the extra package:
import '@babel/runtime/regenerator';

[Martin Malinda]

Since vite is used to bundle the lib now, there's a good chance it's fixed in 5.0. Can anyone confirm?

[JT]

Yes this is fixed.