Type error from @smui/menu

[tuckergordon]

Describe the bug
There is a type error stemming from @smui/menu. I actually ran into it while using @smui/select. You can see this error in this simple stackblitz

/home/projects/sveltejs-kit-template-default-egyygs/node_modules/@smui/menu/src/SelectionGroupIcon.ts:8:3
Error: Types of construct signatures are incompatible.
  Type 'new (options: ComponentConstructorOptions<{ getElement?: (() => HTMLSpanElement) | undefined; use?: ActionArray | undefined; class?: string | undefined; slot?: string | null | undefined; style?: string | ... 1 more ... | undefined; ... 198 more ...; 'on:fullscreenerror'?: EventHandler<...> | ... 1 more ... | undefined; }>) => Graphic__SvelteComponent_' is not assignable to type 'new <Props extends Record<string, any> = any, Events extends Record<string, any> = any, Slots extends Record<string, any> = any>(options: ComponentConstructorOptions<Props>) => SvelteComponent<...>'.
    Construct signature return types 'Graphic__SvelteComponent_' and 'SvelteComponent<Props, Events, Slots>' are incompatible.
      The types of '$$prop_def' are incompatible between these types.
        Type '{ getElement?: (() => HTMLSpanElement) | undefined; use?: ActionArray | undefined; class?: string | undefined; slot?: string | null | undefined; style?: string | ... 1 more ... | undefined; ... 198 more ...; 'on:fullscreenerror'?: EventHandler<...> | ... 1 more ... | undefined; }' is not assignable to type 'Props'.
          '{ getElement?: (() => HTMLSpanElement) | undefined; use?: ActionArray | undefined; class?: string | undefined; slot?: string | null | undefined; style?: string | ... 1 more ... | undefined; ... 198 more ...; 'on:fullscreenerror'?: EventHandler<...> | ... 1 more ... | undefined; }' is assignable to the constraint of type 'Props', but 'Props' could be instantiated with a different subtype of constraint 'Record<string, any>'. 
  class: 'mdc-menu__selection-group-icon',
  component: Graphic,
});

To Reproduce
Steps to reproduce the behavior:

1. npm i -D @smui/select
2. Import @smui/select into a component
3. npm run check to run svelte-check

Additional context
Looks like this showed up in #610 but didn't get resolved as part of #609

[locus2k]

I too am getting the same issue in 7.0.0-beta.15

[vhscom]

Pinned and backed down to several other beta versions 14, 13, 12 and 11, then down to beta.0 and all throw the same error. Given this error did not exist in beta.0 and @sveltejs/kit@1.0.1 it seems this is some kind of corner case. Given it's common to run svelte-check as a CI trigger I hope to see a workaround for this if the fix isn't immediately obvious.

[vhscom]

Possible root cause: sveltejs/language-tools#1056

[cabreraalex]

Any way round this?

[hperrin]

This is fixed in 7.0.0-beta.16! (Along with some other TS issues.)