BUILD FAILED on iOS, fatal error: 'HockeySDK/HockeySDK.h' file not found

[BrennanRoberts]

I've been unable to get my application to run on iOS using the instructions on the homepage. Here's what I've done:

1. Create ios/Podfile

target 'sweetgreen_family' do
  pod 'HockeySDK'
end

2. Run pod install from ios/

Results:

Analyzing dependencies
Downloading dependencies
Installing HockeySDK (4.1.6)
Generating Pods project
Integrating client project

[!] Please close any current Xcode sessions and use `myapp.xcworkspace` for this project from now on.
Sending stats
Pod installation complete! There is 1 dependency from the Podfile and 1 total pod installed.

[!] Automatically assigning platform ios with version 8.0 on target myapp because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.

3. Open myapp.xcodeproj in Xcode and drag ./ios/Pods/Pods.xcodeproj and the contents of ./node_modules/react-native-hockeyapp/RNHockeyApp into the Libraries section.

Results:

4. Run react-native run-ios

Results: BUILD FAILED with

In file included from /Users/brennan/code/myapp/node_modules/react-native-hockeyapp/RNHockeyApp/RNHockeyApp.m:1:
/Users/brennan/code/myapp/node_modules/react-native-hockeyapp/RNHockeyApp/RNHockeyApp.h:9:9: fatal error: 'HockeySDK/HockeySDK.h' file not found
#import <HockeySDK/HockeySDK.h>

This results in the red "react-native-hockeyapp platform setup not complete" screen in the app.

What am I doing wrong?

[BrennanRoberts]

Cloning a fresh repo fixed this issue. I had tried git reset && git clean -fd so the culprit must have been something being gitignored.