Missing Plugin cordova-plugin-wkwebview-file-xhr

I get this error when uploaded to voltbuilder build. Does anyone had solution for this?

UserError: Error: Plugin ’ cordova-plugin-wkwebview-file-xhr’ is not listed in https://npmjs.com.

It looks like you’ve got a leading space in your plugin name. Check your config.xml.

Oh ya, my mistake. Thank you very much.