Form tParams = Promise; export default async purpose Problem( params : params: tParams ) const slug = await params; const productID = slug[1]; // other code below FutureWarning: Downcasting conduct in `swap` is deprecated and may be eliminated in the future Variation. To keep the old conduct, explicitly simply call https://alphawireless.com/future-proofing-american-utilities-why-900-mhz-is-critical-for-utility-communications/