test example doesn't work

[gerchicov-bp]

Downloading dependencies
Installing CPKenburnsView (1.0.1)
Generating Pods project
Integrating client project
Sending stats
Pod installation complete! There is 1 dependency from the Podfile and 1 total
pod installed.

[!] The CPKenburnsSlideshowView-Demo [Debug] target overrides the OTHER_LDFLAGS build setting defined in Pods/Target Support Files/Pods-CPKenburnsSlideshowView-Demo/Pods-CPKenburnsSlideshowView-Demo.debug.xcconfig'. This can lead to problems with the CocoaPods installation - Use the$(inherited)` flag, or
- Remove the build settings from the target.

[!] The CPKenburnsSlideshowView-Demo [Release] target overrides the OTHER_LDFLAGS build setting defined in Pods/Target Support Files/Pods-CPKenburnsSlideshowView-Demo/Pods-CPKenburnsSlideshowView-Demo.release.xcconfig'. This can lead to problems with the CocoaPods installation - Use the$(inherited)` flag, or
- Remove the build settings from the target.

In xcode:
Undefined symbols for architecture armv7:
"OBJC_CLASS$_CPKenburnsView", referenced from:
objc-class-ref in CPKenburnsSlideshowView.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)