I've created a webpart using SPFX GA. In the externals section of the config.json I've added the following from the layouts folder.
In the webparts.tsx they are added as Required('name').
However when trying to add a notification using
SP.UI.Notify.addNotification("message",false);, it says that SP.UI.Notify is undefined.
Is this not available in a SPFX webpart?