can't open .apk using rn-fetch-blob after download it

[JayonLiu]

i download a apk, i want to open it, but make a Error like this:
Error: open failed: EACCES (Permission denied)

this is my code:
RNFetchBlob.config({
addAndroidDownloads: {
useDownloadManager: true,
title: "XXXX.apk",
description: "An APK that will be installed",
mime: "application/vnd.android.package-archive",
path: ${RNFetchBlob.fs.dirs.DownloadDir}/XXXX.apk,
mediaScannable: true,
notification: true,
},
})
.fetch(
"GET",
updateInfo.downloadUrl //
)
.then((res) => {
android.actionViewIntent(
res.path(),
"application/vnd.android.package-archive"
);
})
.catch((err) => {
});