React-Native Bundle Error error SHA-1 for file is not computed

Question

I am facing this error while creating bundle of react-native app.

I am executing command react-native bundle --dev false --entry-file index.js --bundle-output ios/main.jsbundle --platform ios

error SHA-1 for file /usr/local/lib/node_modules/react-native/node_modules/metro/src/lib/polyfills/require.js (/usr/local/lib/node_modules/react-native/node_modules/metro/src/lib/polyfills/require.js) is not computed. Run CLI with --verbose flag for more details.
ReferenceError: SHA-1 for file /usr/local/lib/node_modules/react-native/node_modules/metro/src/lib/polyfills/require.js (/usr/local/lib/node_modules/react-native/node_modules/metro/src/lib/polyfills/require.js) is not computed
    at DependencyGraph.getSha1 (/usr/local/lib/node_modules/react-native/node_modules/metro/src/node-haste/DependencyGraph.js:258:13)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:211:26
    at Generator.next (<anonymous>)
    at asyncGeneratorStep (/usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:46:24)
    at _next (/usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:66:9)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:71:7
    at new Promise (<anonymous>)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:63:12
    at Transformer.transformFile (/usr/local/lib/node_modules/react-native/node_modules/metro/src/DeltaBundler/Transformer.js:236:7)
    at /usr/local/lib/node_modules/react-native/node_modules/metro/src/Bundler.js:87:34

react-native info command output

info Fetching system and libraries information...
System:
    OS: macOS Mojave 10.14.3
    CPU: (4) x64 Intel(R) Core(TM) i5-7360U CPU @ 2.30GHz
    Memory: 1.73 GB / 8.00 GB
    Shell: 3.2.57 - /bin/bash
  Binaries:
    Node: 10.16.0 - /usr/local/bin/node
    Yarn: 1.19.1 - /usr/local/bin/yarn
    npm: 6.13.4 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  SDKs:
    iOS SDK:
      Platforms: iOS 12.2, macOS 10.14, tvOS 12.2, watchOS 5.2
    Android SDK:
      API Levels: 23, 25, 26, 27, 28, 29
      Build Tools: 27.0.3, 28.0.3
      System Images: android-29 | Google Play Intel x86 Atom
      Android NDK: 20.1.5948944
  IDEs:
    Android Studio: 3.4 AI-183.6156.11.34.5522156
    Xcode: 10.2.1/10E1001 - /usr/bin/xcodebuild
  npmPackages:
    react: 16.9.0 => 16.9.0 
    react-native: 0.61.5 => 0.61.5 
  npmGlobalPackages:
    create-react-native-app: 2.0.2
    react-native-cli: 2.0.1
    react-native: 0.61.5

Answer 1

To solve my issue I have run command with --force option.

npm install -i -g --force react-native-cli

This issue was raise due to configure old project with old react-native version. and then trying to run latest react-native ver with new Project.

Answer 2

install with npx run on windows 10

npx react-native run-android

on linux

npx react-native start 

Answer 3

I resolved the issue in my Mac using

npx react-native start

Answer 4

For me, I installed the wrong package.

Instead of this:

npm i -g react-native

Make sure you do this:

npm i -g react-native-cli

Answer 5

I can't comment so use npm install -i -g --force react-native-cli as stated by Punita. It works when it comes to fixing the SHA-1 issue.

But please don't use sudo for any npm related things. thanks.

Answer 6

To solve my issue I have run command with --force option.

npm install -i -g --force react-native-cli

Answer 7

I think that's about version of react-native-cli.

You should try to update.

npm i -g react-native-cli

Answer 8

I would like to add that this same error happened to me (running on PC, Windows) when I tried to run the grade command to build an Android release (./gradlew bundleRelease).

I found the cause of the issue was due to using Dropbox to sync the folder that this React Native project belonged to, using the Dropbox "Back up your PC automatically" feature, where I had my user Documents folder backed up by Dropbox. Essentially, I would get an error like this:

error SHA-1 for file C:\Users\Ted Zhu\Documents\my-app\MyAppWin\index.js (C:\Users\Ted Zhu\Dropbox\PC\Documents\my-app\MyAppWin\index.js) is not computed. Run CLI with --verbose flag for more details. ReferenceError: SHA-1 for file C:\Users\Ted Zhu\Documents\my-app\MyAppWin\index.js (C:\Users\Ted Zhu\Dropbox\PC\Documents\my-app\MyAppWin\index.js) is not computed

I would notice in the error message, it referred to the same file (index.js) with two different paths:

• C:\Users\Ted Zhu\Documents\my-app\MyAppWin\index.js
• C:\Users\Ted Zhu\Dropbox\PC\Documents\my-app\MyAppWin\index.js

This must've been because Dropbox created a symbolic link of the folder so that it would have a path within my Dropbox folder. This appears to cause the file in question to have two paths that refer to the same folder, and trick the Metro bundler into thinking that a SHA hash was not created for one of the project files.

The solution was to move this project to a different directory that is not backed up by Dropbox. In my case, I just created a new folder in my user home directory. Then I was able to successfully run the gradle command to build the Android app.

Answer 9

For me, I fixed it by install correct react-native-cli:

yarn global remove react-native-cli
yarn global add react-native-cli

Answer 10

For me, global cli update does not work.

I Just run the command like yarn react-native bundle...It works!

yarn react-native bundle --reset-cache --entry-file index.js --platform ios --bundle-output test.bundle --dev false