7 errors when I build from xcode 10.1

[idoor88]

Hi, thanks for the code sharing, I downloaded the whole package and did:
npm install react-native --save
npm install react-native-device-info --save
react-native upgrade
react-native link
react-native run-ios
I got build failed message, then I built from xcode, I got 7 errors for RNCWebView as shown:

here is my environment info:
React Native Environment Info:
System:
OS: macOS High Sierra 10.13.6
CPU: (8) x64 Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
Memory: 301.45 MB / 16.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 10.10.0 - /usr/local/bin/node
yarn install v0.15.1
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
[3/4] Linking dependencies...
[4/4] Building fresh packages...
success Saved lockfile.
Done in 9.01s. - /usr/local/bin/yarn
npm: 6.4.1 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
Android SDK:
API Levels: 28
Build Tools: 27.0.3, 28.0.2
IDEs:
Android Studio: 3.1 AI-173.4907809
Xcode: 10.1/10B61 - /usr/bin/xcodebuild
npmPackages:
react: ^16.6.1 => 16.6.1
react-native: ^0.57.7 => 0.57.7
npmGlobalPackages:
react-native-cli: 2.0.1
react-native-git-upgrade: 0.2.7

Here is my package.json:
"dependencies": {
"react": "^16.6.1",
"react-native": "^0.57.7",
"react-native-device-info": "^0.24.3",
"react-native-webview": "github:koenlav/react-native-webview#master"
}

Would you please help me about these issues ? and provide a complete example project about how to use it?
Thanks
Idoor