Obstacle to learning RxSwift: "No such module 'RxSwift'" in example playgrounds

[clozach]

In order to learn RxSwift by example, I launched Rx.xcworkspace and clicked on Introduction.playground. Line 2 immediately came up with the error: No such module 'RxSwift'. The same happens if I open the playground (or any of the playgrounds in Playgrounds/ObservablesOperators).

Am I missing a step? Is this known to be broken?

Fwiw, this is in Xcode Version 6.4 (6E35b).

[carlosypunto]

Hi @clozach

For the playgrounds work, you need build the library before.

1.- Select RxSwift-OSX Scheme, Product -> Scheme -> RxSwift-OSX menu
2.- Select Product -> Build menu or Command+B

Then playgrounds must work.
Remember to activate Assistant editor for to see the outputs

[kzaher]

We'll add instructions to playgrounds, so it will be clearer in future.

[clozach]

Thanks!

[paddlefish]

This error will also occur if you have the Xcode -> Preferences -> Locations -> Derived Data [ Advanced... button ] -> Build Location = Legacy.

To fix it choose Build Location: Unique (which I think is the default).

[XueSeason]

good job! Thx.

[PrajeetShrestha]

Hi, I tried to integrate Playgrounds and tried to tested playground inside workspace made my cocoapods. But it shows these errors. Any idea?

[sergdort]

Hi, @PrajeetShrestha did you build RxSwift-MaOS target before?

[PrajeetShrestha]

Hi Sergdort. As I mentioned. It is not this repo that I cloned. But I am integrating RxSwift in my own project through cocoapods. I created playground in there as well. I am able to import RxSwift and RxCocoa in the playground file but can't use the above method. There is no RxSwift-MacOS Target hence.

[sergdort]

Oh, sorry my bad :)

Which target contains MyPlayground is it TestRx?
If so have you build TestRx ?

[aelam]

I cleaned the 'DerivedData', and built the RxSwift-macOS scheme, and checked that the framework is there, but in playground, it still doesn't work

[quanguyen]

Hi,

Please show me how to build RxSwift-macOS to get rid of this No such module 'RxSwift' from RxSwiftPlayground.swift. I've been struggling with this for an hour but still don't know how. Below is my screenshot:

The instruction at the top of the page writes:

Please build the scheme 'RxSwiftPlayground' first

I tried to build but the still is not gone.

Thanks,

[quanguyen]

Oh shoot! I just found how to fix this: selecting a simulator instead of a physical device!

(I referenced from this link)

Regards,

[JAIRMG]

The sources folder into playground file is empty, I already deleted the derived data

[dipkasyap]

In my case Checking "Build Active Scheme" solved the problem.

[freak4pc]

The original thread is 5 years old and from Xcode 6.4. If someone has a modern issue with it, it would be advisable to open a new issue, so we can track it :) Thanks !