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Web3.js : Questions

Web3.js
Total Post 3
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Expected-private-key-to-be-an-Uint8Array-with-length-32 Expected private key to be an Uint8Array with length 32
Getting-Tx-is-not-a-constructor-when-executing-web3-sendSignedtransaction Getting Tx is not a constructor when executing web3 sendSignedtransaction
Error-you-must-provide-the-json-interface-of-the-contract-when-instantiating-a-contract-object Error: you must provide the JSON interface of the contract when instantiating a contract object
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