Release build fails

I get this error whenever I build my app for iOS using the --release flag. It builds without an error when I omit the flag.
![webview-build-error](https://user-images.githubusercontent.com/44656971/142411691-52e3318a-ed51-44b1-95e1-1d4eb7ac41db.png.

My environment:
OS: macOS 12.0.1
CPU: (16) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
Shell: /bin/zsh
node: 16.13.0
npm: 8.1.3
nativescript: 8.1.4

android

java: 11.0.13
ndk: Not Found
apis: Not Found
build_tools: Not Found
system_images: Not Found

ios

xcode: 13.1/13A1030d
cocoapods: 1.11.2
python: 2.7.18
python3: 3.10.0
ruby: 2.6.8
platforms:

• DriverKit 21.0.1
• iOS 15.0
• macOS 12.0
• tvOS 15.0
• watchOS 8.0

### Dependencies

```json
"dependencies": {
  "@finanzritter/nativescript-pdf-view": "^3.0.3",
  "@nativescript-community/geocoding": "^3.1.0",
  "@nativescript-community/gps": "^3.1.0",
  "@nativescript-community/https": "^3.3.2",
  "@nativescript-community/ui-collectionview": "^4.0.47",
  "@nativescript-community/ui-webview": "^1.3.2",
  "@nativescript/camera": "^5.0.9",
  "@nativescript/core": "^8.1.5",
  "@nativescript/email": "^2.0.5",
  "@nativescript/fingerprint-auth": "^8.0.0",
  "@nativescript/firebase-core": "alpha",
  "@nativescript/firebase-messaging": "alpha",
  "@nativescript/imagepicker": "^1.0.5",
  "@nativescript/ios-security": "^1.0.0",
  "@nativescript/local-notifications": "^5.0.3",
  "@nativescript/secure-storage": "^3.0.0",
  "@nativescript/social-share": "^2.0.4",
  "@nativescript/theme": "^3.0.2",
  "@nstudio/nativescript-exoplayer": "^5.0.9",
  "@souriscloud/nativescript-bitmap-factory": "^2.0.0",
  "@souriscloud/nativescript-google-maps-sdk": "^3.0.3",
  "@triniwiz/nativescript-stripe": "^7.0.1",
  "@triniwiz/nativescript-toasty": "^4.1.3",
  "base-64": "^1.0.0",
  "nativescript-calendar": "^3.0.0",
  "nativescript-clipboard": "^2.1.1",
  "nativescript-menu": "^1.1.7",
  "nativescript-phone": "^3.0.2",
  "nativescript-ui-listview": "^10.0.2",
  "nativescript-ui-sidedrawer": "^10.0.2",
  "rxjs": "^7.4.0",
  "utf8": "^3.0.0"
},
"devDependencies": {
  "@nativescript/android": "^8.1.1",
  "@nativescript/ios": "^8.1.0",
  "@nativescript/types": "^8.1.1",
  "@nativescript/webpack": "^5.0.1",
  "typescript": "^4.5.2"
}

Start by reproducing the iOS release build using the reported macOS, Xcode, NativeScript, and dependency versions, then inspect the attached webview-build-error screenshot. The issue does not name a source file or test; done means identifying the release-only failure and confirming that the app builds successfully with --release.