grpc: gRPC-Core couldn't find openssl files.

I am building a Flutter App. But when I build IOS app via XCode, I got an error message:

'openssl/bio.h' file not found

This error message from a file called “src/core/tsi/alts/crypt/aes_gcm.cc” which under gRPC-Core.

However, I do have openssl installed in my Mac.

when I run: openssl version, I got the following info.

openssl version
OpenSSL 1.0.2r  26 Feb 2019

I also have openssl in my project folder, When I run: sudo find ./ -name “bio.h” in my project folder, I got the following info

.//Pods/BoringSSL-GRPC/include/openssl/bio.h

If I manually include “bio.h” file to “src/core/tsi/alts/crypt/aes_gcm.cc”, I will get another error message and tells me “pb_decode.h” file not found. It seems endless. And manually include files doesn’t fix this problem.

So can anyone help me?

What version of gRPC and what language are you using?

gRPC-C++ (0.0.6) gRPC-Core (1.17.0)

What operating system (Linux, Windows,…) and version?

Mac 10.14.4

What runtime / compiler are you using (e.g. python version or version of gcc)

XCode

pod install information

ShijiedeMini:ios shijiesun$ pod install Analyzing dependencies Fetching podspec for Flutter from .symlinks/flutter/ios Fetching podspec for audioplayers from .symlinks/plugins/audioplayers/ios Fetching podspec for barcode_scan from .symlinks/plugins/barcode_scan/ios Fetching podspec for cloud_firestore from .symlinks/plugins/cloud_firestore/ios Fetching podspec for connectivity from .symlinks/plugins/connectivity/ios Fetching podspec for device_info from .symlinks/plugins/device_info/ios Fetching podspec for firebase_auth from .symlinks/plugins/firebase_auth/ios Fetching podspec for firebase_core from .symlinks/plugins/firebase_core/ios Fetching podspec for firebase_database from .symlinks/plugins/firebase_database/ios Fetching podspec for firebase_messaging from .symlinks/plugins/firebase_messaging/ios Fetching podspec for firebase_storage from .symlinks/plugins/firebase_storage/ios Fetching podspec for flutter_facebook_login from .symlinks/plugins/flutter_facebook_login/ios Fetching podspec for flutter_local_notifications from .symlinks/plugins/flutter_local_notifications/ios Fetching podspec for flutter_sound from .symlinks/plugins/flutter_sound/ios Fetching podspec for flutter_statusbar from .symlinks/plugins/flutter_statusbar/ios Fetching podspec for fluttertoast from .symlinks/plugins/fluttertoast/ios Fetching podspec for fluwx from .symlinks/plugins/fluwx/ios Fetching podspec for geolocator from .symlinks/plugins/geolocator/ios Fetching podspec for google_api_availability from .symlinks/plugins/google_api_availability/ios Fetching podspec for google_maps_flutter from .symlinks/plugins/google_maps_flutter/ios Fetching podspec for google_sign_in from .symlinks/plugins/google_sign_in/ios Fetching podspec for image_picker from .symlinks/plugins/image_picker/ios Fetching podspec for path_provider from .symlinks/plugins/path_provider/ios Fetching podspec for permission_handler from .symlinks/plugins/permission_handler/ios Fetching podspec for screen from .symlinks/plugins/screen/ios Fetching podspec for share from .symlinks/plugins/share/ios Fetching podspec for shared_preferences from .symlinks/plugins/shared_preferences/ios Fetching podspec for sqflite from .symlinks/plugins/sqflite/ios Fetching podspec for stripe_payment from .symlinks/plugins/stripe_payment/ios Fetching podspec for url_launcher from .symlinks/plugins/url_launcher/ios Fetching podspec for video_player from .symlinks/plugins/video_player/ios Downloading dependencies Installing Bolts (1.9.0) Installing BoringSSL-GRPC (0.0.2) Installing FBSDKCoreKit (4.39.1) Installing FBSDKLoginKit (4.39.1) Installing FMDB (2.7.5) Installing Firebase (5.20.2) Installing FirebaseAnalytics (5.8.1) Installing FirebaseAnalyticsInterop (1.2.0) Installing FirebaseAuth (5.4.2) Installing FirebaseAuthInterop (1.0.0) Installing FirebaseCore (5.4.1) Installing FirebaseDatabase (5.1.1) Installing FirebaseFirestore (1.2.1) Installing FirebaseInstanceID (3.8.1) Installing FirebaseMessaging (3.5.0) Installing FirebaseStorage (3.1.1) Installing Flutter (1.0.0) Installing GTMSessionFetcher (1.2.1) Installing GoogleAppMeasurement (5.8.1) Installing GoogleMaps (3.1.0) Installing GoogleSignIn (4.4.0) Installing GoogleToolboxForMac (2.2.0) Installing GoogleUtilities (5.8.0) Installing MTBBarcodeScanner (5.0.11) Installing Protobuf (3.7.0) Installing Reachability (3.2) Installing Stripe (15.0.1) Installing audioplayers (0.0.1) Installing barcode_scan (0.0.1) Installing cloud_firestore (0.0.1) Installing connectivity (0.0.1) Installing device_info (0.0.1) Installing firebase_auth (0.0.1) Installing firebase_core (0.0.1) Installing firebase_database (0.0.1) Installing firebase_messaging (0.0.1) Installing firebase_storage (0.0.1) Installing flutter_facebook_login (0.0.1) Installing flutter_local_notifications (0.0.1) Installing flutter_sound (0.0.1) Installing flutter_statusbar (0.0.1) Installing fluttertoast (0.0.2) Installing fluwx (0.0.1) Installing gRPC-C++ (0.0.6) Installing gRPC-Core (1.17.0) Installing geolocator (3.0.1) Installing google_api_availability (2.0.0) Installing google_maps_flutter (0.0.1) Installing google_sign_in (0.0.1) Installing image_picker (0.0.1) Installing leveldb-library (1.20) Installing nanopb (0.3.901) Installing path_provider (0.0.1) Installing permission_handler (3.0.0) Installing screen (0.0.1)å Installing share (0.5.2) Installing shared_preferences (0.0.1) Installing sqflite (0.0.1) Installing stripe_payment (0.0.1) Installing url_launcher (0.0.1) Installing video_player (0.0.1) Generating Pods project Integrating client project Pod installation complete! There are 34 dependencies from the Podfile and 61 total pods installed.

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