Ionic App build failed on iOS. Firebase Use of undeclared identifier 'FIRInstanceID' - ios

Question

So I have an Ionic App that uses the FCM (Firebase Cloud Messaging) plugin. I've managed to add the iOS platform by running cordova platform add ios and it adds the platform with no issues. However, when I try to run it on the simulator, it fails to build and it throws me this error.
This project is built by someone else and i'm simply trying to build the app for iOS devices. I hope someone would be able to help me on this.
package.json
"dependencies": {
"#angular/animations": "^11.2.9",
"#angular/common": "~10.0.0",
"#angular/core": "~10.0.0",
"#angular/forms": "~10.0.0",
"#angular/platform-browser": "~10.0.0",
"#angular/platform-browser-dynamic": "~10.0.0",
"#angular/router": "~10.0.0",
"#ionic-native/barcode-scanner": "^5.29.0",
"#ionic-native/camera-preview": "^5.21.6",
"#ionic-native/core": "^5.0.0",
"#ionic-native/fcm": "^5.29.0",
"#ionic-native/file": "^5.29.0",
"#ionic-native/file-chooser": "^5.30.0",
"#ionic-native/file-path": "^5.30.0",
"#ionic-native/file-transfer": "^5.30.0",
"#ionic-native/globalization": "^5.31.1",
"#ionic-native/network": "^5.31.1",
"#ionic-native/splash-screen": "^5.0.0",
"#ionic-native/status-bar": "^5.0.0",
"#ionic/angular": "^5.0.0",
"#rxjs/rx": "^4.1.0",
"cordova-android": "^8.1.0",
"cordova-browser": "6.0.0",
"cordova-ios": "^5.1.1",
"cordova-plugin-camera-preview": "^0.12.1",
"cordova-plugin-file": "^6.0.2",
"cordova-sqlite-storage": "^5.1.0",
"install": "^0.13.0",
"ion2-calendar": "https://github.com/shaneparsons/ion2-calendar#76ae1e241183500a377647b363c931a03aa50bca",
"ionic2-calendar": "^0.6.6",
"moment": "^2.29.1",
"ng-connection-service": "^1.0.4",
"ngx-connection-service": "^7.0.3",
"ngx-toastr": "^13.2.1",
"phonegap-plugin-barcodescanner": "^8.1.0",
"rxjs": "^6.5.5",
"rxjs-compat": "^6.6.7",
"tslib": "^2.0.0",
"zone.js": "~0.10.3"
},
"devDependencies": {
"#angular-devkit/build-angular": "~0.1000.0",
"#angular/cli": "10.0.8",
"#angular/compiler": "~10.0.0",
"#angular/compiler-cli": "~10.0.0",
"#angular/language-service": "~10.0.0",
"#ionic/angular-toolkit": "^2.3.0",
"#types/jasmine": "~3.5.0",
"#types/jasminewd2": "~2.0.3",
"#types/node": "^12.11.1",
"codelyzer": "^6.0.0",
"cordova-plugin-androidx-adapter": "^1.1.3",
"cordova-plugin-device": "^2.0.2",
"cordova-plugin-fcm-with-dependecy-updated": "^7.4.0",
"cordova-plugin-file-transfer": "^1.7.1",
"cordova-plugin-filechooser": "^1.2.0",
"cordova-plugin-filepath": "^1.5.8",
"cordova-plugin-globalization": "^1.11.0",
"cordova-plugin-ionic-keyboard": "^2.2.0",
"cordova-plugin-ionic-webview": "^4.2.1",
"cordova-plugin-network-information": "^2.0.2",
"cordova-plugin-splashscreen": "^5.0.2",
"cordova-plugin-statusbar": "^2.4.2",
"cordova-plugin-whitelist": "^1.3.4",
"jasmine-core": "~3.5.0",
"jasmine-spec-reporter": "~5.0.0",
"karma": "~5.0.0",
"karma-chrome-launcher": "~3.1.0",
"karma-coverage-istanbul-reporter": "~3.0.2",
"karma-jasmine": "~3.3.0",
"karma-jasmine-html-reporter": "^1.5.0",
"protractor": "~7.0.0",
"ts-node": "~8.3.0",
"tslint": "~6.1.0",
"typescript": "~3.9.5"
},
"description": "An Ionic project",
"cordova": {
"plugins": {
"cordova-plugin-whitelist": {},
"cordova-plugin-statusbar": {},
"cordova-plugin-device": {},
"cordova-plugin-splashscreen": {},
"cordova-plugin-ionic-webview": {
"ANDROID_SUPPORT_ANNOTATIONS_VERSION": "27.+"
},
"cordova-plugin-ionic-keyboard": {},
"phonegap-plugin-barcodescanner": {
"ANDROID_SUPPORT_V4_VERSION": "27.+"
},
"cordova-plugin-camera-preview": {
"ANDROID_SUPPORT_LIBRARY_VERSION": "26+"
},
"cordova-plugin-file": {},
"cordova-sqlite-storage": {},
"cordova-plugin-fcm-with-dependecy-updated": {
"ANDROID_DEFAULT_NOTIFICATION_ICON": "#mipmap/ic_launcher",
"ANDROID_FCM_VERSION": "21.0.0",
"ANDROID_FIREBASE_BOM_VERSION": "26.0.0",
"ANDROID_GOOGLE_SERVICES_VERSION": "4.3.4",
"ANDROID_GRADLE_TOOLS_VERSION": "4.1.0"
},
"cordova-plugin-file-transfer": {},
"cordova-plugin-filechooser": {},
"cordova-plugin-filepath": {},
"cordova-plugin-globalization": {},
"cordova-plugin-network-information": {},
"cordova-plugin-androidx-adapter": {}
},
"platforms": [
"browser",
"android",
"ios"
]
}
<?xml version='1.0' encoding='utf-8'?>
...
<plugin name="cordova-plugin-whitelist" spec="1.3.3" />
<plugin name="cordova-plugin-statusbar" spec="2.4.2" />
<plugin name="cordova-plugin-device" spec="2.0.2" />
<plugin name="cordova-plugin-splashscreen" spec="5.0.2" />
<plugin name="cordova-plugin-ionic-webview" spec="^4.0.0" />
<plugin name="cordova-plugin-ionic-keyboard" spec="^2.0.5" />
<allow-navigation href="http://localhost:8100" sessionid="62158917" />
</widget>