CODEWITHSUNDEEP
react-native
Adriaan De Bolle
Adriaan De Bolle

Reputation: 255

How to fix console.error: "This browser lacks typed array (Uint8Array) support which is required by buffer v5.x. Use buffer v4.x if ..."

Suddenly this buffer problem came up within our project. It's quite strange from where it comes...

console.error: "This browser lacks typed array (Uint8Array) support which is required by buffer v5.x. Use buffer v4.x if you require old browser support."

console.error: "This browser lacks typed array (Uint8Array) 
support which is required by `buffer` v5.x. 
Use `buffer` v4.x if you require old browser support."
<unknown>
    index.js:41:4
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    scclientsocket.js:9:20
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    index.js:1:28
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    devTools.js:15:34
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    index.js:6:23
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    store.js:10
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    HomeScreen.js:9
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:207:36
metroRequire
    require.js:127:24
<unknown>
    index.js:3
loadModuleImplementation
    require.js:321:6
guardedLoadModule
    require.js:199:45
metroRequire
    require.js:127:24
global code

$ react-native info

React Native Environment Info:
    System:
      OS: macOS 10.14.5
      CPU: (4) x64 Intel(R) Core(TM) i5-4278U CPU @ 2.60GHz
      Memory: 30.05 MB / 8.00 GB
      Shell: 3.2.57 - /bin/bash
    Binaries:
      Node: 10.15.3 - /usr/local/bin/node
      Yarn: 1.15.2 - /usr/local/bin/yarn
      npm: 6.4.1 - /usr/local/bin/npm
      Watchman: 4.9.0 - /usr/local/bin/watchman
    SDKs:
      Android SDK:
        API Levels: 28
        Build Tools: 28.0.3
        System Images: android-28 | Google APIs Intel x86 Atom_64
    IDEs:
      Android Studio: 3.4 AI-183.6156.11.34.5692245
      Xcode: /undefined - /usr/bin/xcodebuild
    npmPackages:
      react: 16.5.0 => 16.5.0 
      react-native: 0.58.6 => 0.58.6 
    npmGlobalPackages:
      react-native-cli: 2.0.1
      react-native-git-upgrade: 0.2.7

Changing to older git branches and version keep giving this issue on emulators and physical devices. We included different buffer versions.

Upvotes: 5

Views: 3155

Answers (3)

Adriaan De Bolle
Adriaan De Bolle

Reputation: 255

It was required to upgrade react-native to a more recent version. Then this error disappeared.

Upvotes: 0

Thenmozhi.V
Thenmozhi.V

Reputation: 1

Check the version installed before changing to new

Try to install the buffer version 4.

You can use the following command:

npm install buffer@4 --save

Upvotes: 0

Ale Paciotti
Ale Paciotti

Reputation: 181

I don't know if it will be very useful for you but I got the same problem and the only way to have my work environment ready was by starting the Remote JS debugging.

Upvotes: 1

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