I had same issue on UE 4.17.2
and It is fixed after I install ndk-r14b and set windows environment variable NDKROOT, and I run UE4.17 editor > Edit > project settings > Platforms > Android > configure for android
I had same issue on UE 4.17.2
and It is fixed after I install ndk-r14b and set windows environment variable NDKROOT, and I run UE4.17 editor > Edit > project settings > Platforms > Android > configure for android