Dependancy Analysis Error

[Isuru-Nanayakkara]

I downloaded the example project and tried running it in Xcode 8.2. I'm getting the following error.

“Use Legacy Swift Language Version” (SWIFT_VERSION) is required to be configured correctly for targets which use Swift. Use the [Edit > Convert > To Current Swift Syntax…] menu to choose a Swift version or use the Build Settings editor to configure the build setting directly.

Deleted the Derived Data folder, cleaned the project and built it again but still the same error occurs.