Ionic 3 cordova-branch-sdk plugin not working (ios)

ionic 3 cordova branch sdk plugin not working in ios build its giving “branch.h file not found” error

ionic info:

Ionic:

Ionic CLI : 6.10.2 (/usr/local/lib/node_modules/@ionic/cli)
Ionic Framework : ionic-angular 3.9.2
@ionic/app-scripts : 3.2.4

Cordova:

Cordova CLI : 8.1.1 (cordova-lib@8.1.0)
Cordova Platforms : ios 4.5.5
Cordova Plugins : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 1.2.1, (and 15 other plugins)

Utility:

cordova-res (update available: 0.15.1) : 0.6.0
native-run (update available: 1.0.0) : 0.2.9

System:

ios-deploy : 1.9.4
NodeJS : v10.16.3 (/usr/local/bin/node)
npm : 6.13.4
OS : macOS Catalina
Xcode : Xcode 11.5 Build version 11E608c