Cannot read property 'default' of undefined

[jeroencornelissen]

Since the @1.3.0 update we get this error:

Error location:

@pYr0x had this issue before and he thinks it had something to do with a export default in a module.

If I downgrade back to @1.2.2 the error is gone.

[jeroencornelissen]

If we upgrade all our components to @1.3.0 the issue is resolved. So, it only occurs when there is a mix of @1.2.2 and @1.3.0.