typescript——类型为“Blob”的参数不能分配给类型为“SetStateAction<typeof import（“buffer”）>”的参数

我正在努力设定一个目标Blob使用时的价值useState(Blob)它不起作用了--

试图使用null或String或者干脆不填，这是同一个问题。

import * as ImagePicker from 'expo-image-picker';
import Blob from 'buffer';

const [uploaded, setUploaded] = useState(false);
const [video, setVideo] = useState(Blob);

const uploadMedia = async () => {
  if (uploaded) return;
  let result = await ImagePicker.launchImageLibraryAsync({
    mediaTypes: ImagePicker.MediaTypeOptions.Videos,
    allowsEditing: true,
    aspect: [4, 3],
    quality: 0,
  });
  if (!result.cancelled) {
    const response = await fetch(result.uri);
    const blob = await response.blob();
    setVideo(blob); /* < Argument of type 'Blob' is not assignable to 
                    parameter of type 'SetStateAction' */
  }
};

有什么想法吗？