Linker Command failed with exit code 1 (use -v to see invocation), Xcode 8, Swift 3

i was facing same issue today in xcode 8 version 8.3.2
right click on issue –> reveal in log

then you are able to check what is causing that issue

Maybe you installed a pod file and you are still trying to build from the .xcodeproj file instead of .xcworkspace