CODEWITHSUNDEEP
iosswiftobjective-ccocoa-touchxcode9.4
Michel
Michel

Reputation: 11749

“Swift Language Version” error in an Objective C app

Dealing with an Objective C iOS app (working fine); when I start to set some Core Data entities up, as soon as I compile I get this error message:

The “Swift Language Version” (SWIFT_VERSION) build setting must be set to a supported value for targets which use Swift. This setting can be set in the build settings editor.

I am using Xcode Version 9.4.1 and there is no SWIFT_VERSION in the build settings editor. And if I eliminate the Core Data entity I just set up, the problem goes away.

I'd be happy if someone had an explanation and told me what to do. I am somewhat surprised to see this message related to “Swift Language Version”, when my app is only in Objective C. But I presume some dependency may be using Swift.

Upvotes: 0

Views: 213

Answers (2)

Naresh
Naresh

Reputation: 17902

Go to Targets

--> select Build setting

--> search swift language version (top right)

-->In Swift Language Version change version

See below screen shot.

enter image description here

See my updated screen shot

enter image description here

Upvotes: 0

ranjeet
ranjeet

Reputation: 51

Can you please check into your build setting about Swift version. Because I too have a project which is in Objective C but still we need to set Swift version in build setting. Please check Attached image enter image description here

Upvotes: 2

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