react-native-blob-util: TypeError: null is not an object

env os: macOS 10.15.7 mobile device : Motorolla power one, running stock android10 react-native-blob-util version: 0.13.7 react-native: 0.61.5

AndroidManifest.xml

...
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
....
<application
    ...
    android:requestLegacyExternalStorage="true"
>
...

code

import ReactNativeBlobUtil from 'react-native-blob-util'


const tempImageUri = await ReactNativeBlobUtil.config({ fileCache: true }).fetch(`${image_url}`)

error

TypeError : null is not an object (evaluating 'ReactNativeBlobUtil.DocumentDir')

Any idea where I might be going wrong?

About this issue

Original URL
State: closed
Created 3 years ago
Reactions: 8
Comments: 23 (6 by maintainers)

Commits related to this issue

Fix version of react-native-blob-util According to [a blob-util issue](https://github.com/RonRadtke/react-native-blob-util/issues/33), this will fix the crash I'm seeing due to this library's upgrade... — committed to alburdette619/redux-persist-filesystem-storage by deleted user 3 years ago

Most upvoted comments

@CoreyBovalina If you’re using yarn then can you try this?

Add this to package.json


    "resolutions": {
        "react-native-blob-util": "0.13.17"
    },

Add react-native-blob-util@0.13.17 as a dependency
Delete node_modules and run yarn install again

AGIsmail on Nov 16, 2021

“react-native-blob-util”: “0.13.17”

in addition to doing having it as an added package as well?

when I tried doing this and it didn’t fix it before: yarn add react-native-pdf react-native-blob-util fbjs

CoreyBovalina on Nov 16, 2021

I fixed sth that could cause it, so probably you got that fix now. I’m glad it’s now working for you

RonRadtke on Nov 2, 2021

Delete node_modules folder (or make sure to delete rn-ftech-blob)
Install react-native-blob-util as a standard dependency for your project That’s all, it should work. It sounds like your app is trying to find the library within of react-native-pdf. But there it won’t be installed

RonRadtke on Nov 18, 2021

are you using expo or a plain simple react-native project?

in my case this is not an expo project, it is a plain simple react-native project

davepaiva on May 19, 2021