error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0

Asked May 14 '19 at 08:09

Active May 14 '19 at 09:05

Viewed 207 times

I am trying to make an Xcode (version 10.2) project. I have only used Swift 5.0 in my life and but I get an error:

"error: SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0.(in Target Quizzler)"

I have tried a lot of ways on Stack Overflow that have been recommended but none of them seem to work. Is there a way to solve this?

Making all the swift versions in swift build settings 5.0, making SWIFT_SWIFT3_OBJC_INFERENCE yes instead of no.

No code.

It is supposed to be a quiz but it gives me an error:

SWIFT_VERSION '3.0' is unsupported, supported versions are: 4.0, 4.2, 5.0.(in Target Quizzler) error.

edited May 14 '19 at 09:05

sentence

asked May 14 '19 at 08:09

Z9.

1

You try to open existing project in Xcode 10.2 or it is new project? – Serhii Didanov May 14 '19 at 08:29
1

It is an existing project. I worked on it for an hour before encountering error. – Z9. May 16 '19 at 08:02

0 Answers0