Ionic-native-google-maps: Unable To Call Remove or Clear Methods

[collindutter]

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cordova information: (run $> cordova plugin list)

com.googlemaps.ios 2.7.0 "Google Maps SDK for iOS"
cordova-plugin-device 2.0.2 "Device"
cordova-plugin-googlemaps 2.4.2-beta-20180830-1203 "cordova-plugin-googlemaps"
cordova-plugin-ionic-keyboard 2.1.2 "cordova-plugin-ionic-keyboard"
cordova-plugin-ionic-webview 2.1.0 "cordova-plugin-ionic-webview"
cordova-plugin-splashscreen 5.0.2 "Splashscreen"
cordova-plugin-statusbar 2.4.2 "StatusBar"
cordova-plugin-whitelist 1.3.3 "Whitelist"

If you use @ionic-native/google-maps, please tell the package.json (only @ionic-native/core and @ionic-native/google-maps are fine mostly)

Current behavior:
Calling any of the remove or clear methods (map.clear(), marker.remove(), polyline.remove()) results in an error.
ERROR Error: Uncaught (in promise): TypeError: plugin.constructor.getPluginRef is not a function

Expected behavior:
Calling any of the remove or clear methods should remove their respective item.

Screen capture or video record:
https://streamable.com/0oo8m

Related code, data or error log (please format your code or data):
myPolyline.remove(); myMarker.remove(); myMap.clear();

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Please share your project files on Github or others(Bitbucket, Gitlabs...etc).
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Screen captures, and/or native logs(such as Logcat, xcode logs) are appreciate.

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Thank you for your cooperation.

[wf9a5m75]

Please share your project files on Github.

[wf9a5m75]

The error comes from @InstanceCheck() decorator.
https://github.com/ionic-team/ionic-native-google-maps/blob/4ab9ac3ac9dc0d5f50721f4e666da6a65275713e/src/%40ionic-native/plugins/google-maps/index.ts#L2582-L2597

In order to inspect more deeply, please share your project files on Github.

[collindutter]

https://github.com/collindutter/ionic-native-google-maps-issue

[wf9a5m75]

Thank you for sharing your project files. It's perfect to inspect the problem.
I fixed the bugs, and released it as @ionic-native/[email protected].
Please reinstall it.

https://www.npmjs.com/package/@ionic-native/google-maps/v/5.0.0-beta.21

$> npm uninstall @ionic-native/google-maps

$> npm install @ionic-native/[email protected]