Cannot convert IOErrorEvent to Error when assets aren't found.

[jackwlee01]

When Flump can't find the assets isn't giving me a proper error, it is instead throwing this runtime error.

TypeError: Error #1034: Type Coercion failed: cannot convert flash.events::IOErrorEvent@1276ed281 to Error. at RListener1/onEmit() at react::AbstractSignal$/EMIT() at react::Reactor/notify() at react::AbstractSignal/notifyEmit() at react::Signal/emit() at flump.executor::Future/onFailure() at flump.executor::FutureTask/fail() at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at deng.fzip::FZip/defaultErrorHandler()