Extension class must have an extension object

[Kstar0722]

I am getting Extension class must have an extension object when I try to use it with @pixi/node

@pixi/node: 7.0.5 pixi-spine: 3.1.1

[berecat]

same here

[nigel-loops]

same issue with pixi/loaders. It might be trying to import the node module versions even though im using commonJS