Module compiled with Swift 5.1 cannot be imported by the Swift 5.1.2 compiler

Question

Module compiled with Swift 5.1 cannot be imported by the Swift 5.1.2 compiler

kenshinzz opened this issue 4 years ago · comments

Gorawit Tapsanongsuk commented 4 years ago

I found this issue when I build with xcode 11.4.1

ReactiveSwift version 6.1

Marco Cancellieri · Answer 1 · Thu Apr 30 2020 15:53:32 GMT+0800 (China Standard Time)

Have you tried rebuilding ReactiveSwift since downloading/installing 11.4.1?

Gorawit Tapsanongsuk · Answer 2 · Thu Apr 30 2020 16:02:52 GMT+0800 (China Standard Time)

Yes, I have

Anders Ha · Answer 3 · Tue May 26 2020 01:32:47 GMT+0800 (China Standard Time)

We haven't distributed binaries since ReactiveSwift 2.0. This looks more an issue in Carthage usage, which Carthage builds your dependencies using a different Xcode version (and hence Swift compiler). Try to make sure that the xcode-select is pointing to the version you actually intended to use.

https://github.com/Carthage/Carthage/issues

IKEDA Sho · Answer 4 · Tue May 26 2020 01:57:40 GMT+0800 (China Standard Time)

We will need to set BUILD_LIBRARIES_FOR_DISTRIBUTION to YES for supporting module stability introduced in Swift 5.1.

Anders Ha · Answer 5 · Tue May 26 2020 02:08:22 GMT+0800 (China Standard Time)

@ikesyo Could you please elaborate on the rationle?

Users embedding ReactiveSwift as source libraries shouldn't be required to pay the cost for BUILD_LIBRARIES_FOR_DISTRIBUTION, should they? That is unless you are advocating for us to start formally guaranteeing ABI and module stability?

IKEDA Sho · Answer 6 · Tue May 26 2020 02:25:37 GMT+0800 (China Standard Time)

Otherwise Carthage users who build frameworks locally can't reuse built frameworks. Hmm should Carthage offer --build-for-distribution option for this situation? 🤔