Product.find((x)=>x._id===props.params.match.id); products: [ { _id: '1', name: 'Nike Slim Shirt', category: 'Shirts', image: '/images/p1.jpg', price: 120, countInStock: 10, brand: 'Nike', rating: 4.5, numReviews: 10, description: 'high quality product', },Porque la propiedad Params no está definida.