I'm having an error while trying to upgrade to the latest version (1.2.1) with the new install mechanism:
[Vue warn]: Property or method "$routerHistory" is not defined on the instance but referenced during render. Make sure that this property is reactive, either in the data option, or for class-based components, by initializing the property. See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.
I'm having an error while trying to upgrade to the latest version (1.2.1) with the new install mechanism: