Throwing Error results in odd TS error message

[rohanrichards]

Just trying to throw a generic error like this:
throw new Error('error');
And I get this TS error:
Argument of type 'string' is not assignable to parameter of type 'Svelte2TsxComponentConstructorParameters<{ status: string; error: Error; }>'.
I can't find anything about Svelte2TsxComponentConstructorParameters where is this coming from? And why am I getting this error when just trying to create a new Error object? Am I missing something here?

[rohanrichards]

I had accidentally auto-imported the svelte Error component and it was overriding the system/window Error object