Error in boot-server.tsx for react-redux app when deploying to Azure  #917

Hi. I got this error when I try to deploy fresh react-redux app.
`ERROR in [at-loader] ./ClientApp/boot-server.tsx:43:25 TS2345: Argument of type '{ html: string; globals: { initialReduxState: ApplicationState; }; }' is not assignable to parameter of type 'RenderToStringResult | RedirectResult | PromiseLike'. Type '{ html: string; globals: { initialReduxState: ApplicationState; }; }' is not assignable to type 'PromiseLike'. Property 'then' is missing in type '{ html: string; globals: { initialReduxState: ApplicationState; }; }'.

Can anyone help me with this?
Thank you in advance!