问题
When I install facebook SDK pods into my ios project, It says ":-1: SWIFT_VERSION '5.0' is unsupported, supported versions are: 3.0, 4.0, 4.2. (in target 'FacebookCore')"
I am using swift 4.2 any solution?
回答1:
Change the podfile swift version like for any pod if you are getting this error like
Select pods of your project
After then you follow the steps as described in the image and change the swift version for the pod
回答2:
I am currently using Xcode 10.1. The "Targets" section is in another place of the interface.
Xcode 10.1 screenshot
Beyond that, the Ravi Ojha solution works fine as well.
回答3:
Follow these steps and change nay required pod version.
回答4:
The solution for me was to update from xcode 10.0 to 10.3 which supports Swift 5.0
来源：https://stackoverflow.com/questions/55585062/xcode-keeps-showing-1-swift-version-5-0-is-unsupported-supported-versions-a