This copy of libswiftCore.dylib requires an OS version prior to 10.14.4

📚 Official Books Server Side Swift with Vapor
1

Hi,

Chapter 2, page 33 when I do : vapor run, I get this error :

$ vapor run

Running HelloVapor2 …

This copy of libswiftCore.dylib requires an OS version prior to 10.14.4.

How can I solve this?

I’m on macOS 10.15 Beta 4
Xcode 10 and 11 Beta both are installed

2

@blakninja I’ve seen that on the forums a few times to do with Xcode on Catalina. I don’t actually know the solution since it’s an Xcode issue. Join the Vapor Discord and ask in the #misc channel, some people may be able to help!

3

(Alternatively, building from Xcode should work fine)

4

Re: (Alternatively, building from Xcode should work fine)

Hi @0xtim,

I opened the project with Xcode and built it, then ran vapor run and still get the same error. Maybe I am not doing it correctly?

Btw, I don’t have a problem with building, using vapor build. The problem is with vapor run.

FYI : I asked in #misc and someone suggested using swift run, but I get the same error.

5

Have you tried running from Xcode?

6

Running with Xcode 11 beta worked. Thanks!