The type 'Threading.Tasks.Task' is not compatible with the type 'Threading.Tasks.Task<'a>'

Question

The type 'Threading.Tasks.Task' is not compatible with the type 'Threading.Tasks.Task<'a>'

dustinmoris opened this issue 6 years ago · comments

Dustin Moris Gorski commented 6 years ago

I am not sure if I am doing something wrong or if this is a bug, but I am getting the following error when trying to do a do! binding:

The type 'Threading.Tasks.Task' is not compatible with the type 'Threading.Tasks.Task<'a>'

This is a netcoreapp2.1 project, with the latest TaskBuilder.fs and built on the latest 2.1.400 SDK.

I also opened open FSharp.Control.Tasks.V2.ContextInsensitive.

Did I miss something?

Steffen Forkmann · Answer 1 · Mon Aug 20 2018 14:50:17 GMT+0800 (China Standard Time)

Are you sure the error is not in next line? Different result type than inside the try/catch that happened to me a lot and error is always reported to early

Dustin Moris Gorski · Answer 2 · Mon Aug 20 2018 15:00:40 GMT+0800 (China Standard Time)

Yeah I'm pretty sure, because the compiler throws the error on this line too and the same code doesn't have a type problem with the TaskBuilder which has the unitTask.

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On Mon, 20 Aug 2018, 07:50 Steffen Forkmann, ***@***.***> wrote: Are you sure the error is not in next line? Different result type than inside the try/catch that happened to me a lot and error is always reported to early — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEXlapK573Lq6ITpz4K-5B1ZxVWm38z7ks5uSlwpgaJpZM4WDalN> .

Steffen Forkmann · Answer 3 · Mon Aug 20 2018 15:03:35 GMT+0800 (China Standard Time)

Ok. Was just one thing that I was seeing a lot...

Gustavo Leon · Answer 4 · Mon Aug 20 2018 15:32:49 GMT+0800 (China Standard Time)

Can you provide small repro?

Dustin Moris Gorski · Answer 5 · Tue Aug 21 2018 03:09:36 GMT+0800 (China Standard Time)

Ok, I found the issue. It was between my chair and my keyboard. Thanks for the help!

Steffen Forkmann · Answer 6 · Tue Aug 21 2018 04:05:45 GMT+0800 (China Standard Time)

Could you please be more specific? I think we still have at least a error reporting issue here - probably inside of the F# compiler itself. (at least that's what I was referring to in the stuff I was seeing) Dustin Moris Gorski <notifications@github.com> schrieb am Mo., 20. Aug. 2018, 21:09:

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Ok, I found the issue. It was between my chair and my keyboard. Thanks for the help! — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#23 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AADgNBk3Y_TDjq-6lZgJYpN0uehvklFAks5uSwlxgaJpZM4WDalN> .

Dustin Moris Gorski · Answer 7 · Tue Aug 21 2018 05:14:41 GMT+0800 (China Standard Time)

@forki In my case I missed one place where I didn't change from FSharp.Control.Tasks to FSharp.Control.Tasks.V2.