RNAppAuth, iOS build failed, Unknown type name 'namespace', react-native-app-auth - ios

Question

I am trying to add react-native-app-auth to existing, but quite fresh project with Expo.
I'm following your setup guide, so doing following steps:
yarn add react-native-app-auth#2.2.0 --dev
Add pod 'AppAuth', '>= 0.91'
cd iso && pod install
react-native link (EDIT: from root path of the project)
And I get:
rnpm-install info Linking react-native-app-auth ios dependency
rnpm-install WARN ERRGROUP Group 'Libraries' does not exist in your Xcode project. We have created it automatically for you.
rnpm-install info Platform 'ios' module react-native-app-auth has been successfully linked
which looks fine.
Then when I build in XCode i get the following error:
After searching the web I found it may be connected with compilator I changed it use Objective-C++:
and now I get more errors:
I also tried:
Changing Target version to 9.0
Doing it again
Praying 🙏
Nothing helps :( Xcode Version 9.3 (9E145)
app.js
{
"expo": {
"sdkVersion": "26.0.0",
"ios": {
"bundleIdentifier": "com.xxx.xxx",
"publishBundlePath": "ios/mobile-xxx/Supporting/shell-app.bundle",
"publishManifestPath": "ios/mobile-xxx/Supporting/shell-app-manifest.json"
},
"android": {
"package": "com.xxx.xxx"
},
"name": "mobile-xxx",
"slug": "mobile-xxx",
"version": "0.1.0",
"isDetached": true,
"entryPoint": "./index.js",
"detach": {
"scheme": "exp997ce9c6b4fd43cfa14f4eede063ecf5",
"iosExpoViewUrl": "https://s3.amazonaws.com/exp-exponent-view-code/ios-v2.4.4-sdk26.0.0-3bd935c7-cdd3-4002-8e44-4df857a675f2.tar.gz",
"androidExpoViewUrl": "https://s3.amazonaws.com/exp-exponent-view-code/android-v2.4.0-sdk26.0.0-e63d9209-070c-4118-b06b-c60e82da0b66.tar.gz"
}
}
}
package.js
{
"name": "mobile-xxx",
"version": "0.1.0",
"private": true,
"devDependencies": {
"jest-expo": "26.0.0",
"react-native-app-auth": "2.2.0",
"react-test-renderer": "16.3.0-alpha.1"
},
"main": "node_modules/expo/AppEntry.js",
"scripts": {
"test": "jest"
},
"jest": {
"preset": "jest-expo"
},
"dependencies": {
"expo": "^26.0.0",
"prop-types": "^15.6.1",
"react": "16.3.0-alpha.1",
"react-native": "https://github.com/expo/react-native/archive/sdk-26.0.0.tar.gz",
"react-native-app-auth": "^2.2.0",
"react-native-router-flux": "^4.0.0-beta.28",
"react-redux": "^5.0.7",
"redux": "^3.7.2"
}
}
UPDATE: I have just setup a fresh Expo app following this guide and have exactly the same error. 😞

Answer 1

The problem is that there is an import in header search paths, which searches in the whole /ios folder:
$(SRCROOT)/../../../ios/**
If you happen to use Expo and CocoaPods, there will be boost-for-react-native as a dependency inside your Pods folder. In fact, any package depending on boost will cause this problem. XCode tries to build boost as well, but it has some non-ObjC files, so it will fail.
In order to fix the issue:
Open RNAppAuth.xcodeproj, switch to Build Settings tab and search for header search paths. Replace line $(SRCROOT)/../../../ios/** with
"$(SRCROOT)/../../../ios/YOUR_PROJECT_NAME",
"$(SRCROOT)/../../../ios/Pods/AppAuth/**",
Please note that these changes will disappear after using npm install (or yarn). To make these changes permanent, you can use patch-package.
Edit: this issue has been fixed, using the latest version of the package should work now.