Could not find method compile() for arguments [com.facebook.react:react-native:0.20.+] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

Sửa file

node_modules\react-native-print\android\build.gradle

như sau

dependencies {
    compile 'com.facebook.react:react-native:0.20.+' // sửa compile thành implementation
}