Carthage build error

[pocket7878]

I added

github "aschuch/AwesomeCache" "master"

to my Cartfile and run carthage update --platform iOS then
I got this error:

*** Building scheme "AwesomeCache-iOS" in Example.xcodeproj
** BUILD FAILED **

The following build commands failed:
    CompileSwift normal arm64
    CompileSwiftSources normal arm64 com.apple.xcode.tools.swift.compiler
(2 failures)
/path/to/my/project/Carthage/Checkouts/AwesomeCache/AwesomeCache/AwesomeCache.h:20:9: error: include of non-modular header inside framework module 'AwesomeCache'
<unknown>:0: error: could not build Objective-C module 'AwesomeCache'
A shell task (/usr/bin/xcrun xcodebuild -project /path/to/my/project/Carthage/Checkouts/AwesomeCache/Example.xcodeproj -scheme AwesomeCache-iOS -configuration Release -sdk iphoneos ONLY_ACTIVE_ARCH=NO BITCODE_GENERATION_MODE=bitcode CODE_SIGNING_REQUIRED=NO CODE_SIGN_IDENTITY= CARTHAGE=YES clean build) failed with exit code 65:
** BUILD FAILED **