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I created a new react-native project using

npx react-native init AwesomeTSProject --template react-native-template-typescript

Then I followed the steps metioned in the following url to install @solana/web3.js package https://solanacookbook.com/integrations/react-native.html#create-a-new-app

Then I gave this command to generate the build

npx react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/

I am getting this error

error node_modules/@solana/web3.js/lib/index.native.js: Unexpected token name «n», expected punc «,» in file node_modules/@solana/web3.js/lib/index.native.js at 4276:32.
Error: Unexpected token name «n», expected punc «,» in file node_modules/@solana/web3.js/lib/index.native.js at 4276:32
    at minifyCode (/Users/username/Workspace/sampleproj/node_modules/metro-transform-worker/src/index.js:99:13)
    at transformJS (/Users/username/Workspace/sampleproj/node_modules/metro-transform-worker/src/index.js:317:28)
    at transformJSWithBabel (/Users/username/Workspace/sampleproj/node_modules/metro-transform-worker/src/index.js:408:16)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async Object.transform (/Users/username/Workspace/sampleproj/node_modules/metro-transform-worker/src/index.js:569:12)

Can anyone help me out??

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The n token that the bundle step is failing on is part of a JavaScript bigint literal. These are literals of the form 10000n. At a certain point, @solana/web3.js began to admit code made up of bigint literals.

Your version of React Native does not support bigint literals. Check out the minimum requirements in the README of @solana/web3.js.

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