I installed @react-native-firebase/admob

and then I used pod install. cocoapods gets error. I also used pod install --repo-update it didn't work for me. this admob works very well on android, but iOS shows this error. If you know how, I'd appreciate it if you could let me know.

[!] CocoaPods could not find compatible versions for pod "firebase/AdMob":
   In Podfile:
      RNFBAdMob (from `../node_modules/@react-native-firebase/admob`) was resolved to 11.5.0, which depends on Firebase/AdMob (= 8.4.0)

None of your spec source contain a spec satisfying the dependency: `Firebase/AdMob (= 8.4.0)`.

package.json

"@react-native-community/masked-view": "^0.1.11",
"@react-native-firebase/admob": "^11.5.0",
"@react-native-firebase/app": "^12.4.0",
"@react-native-firebase/functions": "^12.4.0",
"@react-native-firebase/messaging": "^12.4.0",
"@react-native-firebase/storage": "^12.3.0",
"@react-native-picker/picker": "^1.16.3",
"@react-navigation/bottom-tabs": "^5.11.11",
"@react-navigation/native": "^5.9.4",
"@react-navigation/stack": "^5.14.5",
"axios": "^0.21.1",
"firebase": "^8.7.0",
"moment": "^2.29.1",
"phone": "^3.1.6",
"querystring": "^0.2.1",
"react": "17.0.1",
"react-firebase-hooks": "^3.0.4",
"react-native": "0.64.2",
"react-native-admob": "^2.0.0-beta.6",
"react-native-device-info": "^8.3.0",
"react-native-gesture-handler": "^1.10.3",
"react-native-image-crop-picker": "^0.36.2",
"react-native-mail": "^6.1.0",
"react-native-modal": "^12.0.2",
"react-native-push-notification": "^7.4.0",
"react-native-reanimated": "^2.2.0",
"react-native-safe-area-context": "^3.2.0",
"react-native-screens": "^3.4.0",
"react-native-vector-icons": "^8.0.0",
"twilio": "^3.67.0"