Fabrizio Bertone
Fabrizio Bertone's Blog

Fabrizio Bertone's Blog

How to solve error: sending a transaction requires a signer (operation="sendtransaction", code=unsupported_operation, version=contracts/5.5.0)

Jan 17, 20222 min read

This is quite a common issue for beginning Web 3 developers: sending a transaction requires a signer (operation="sendtransaction", code=unsupported_operation, version=contracts/5.5.0) When interacting with Smart Contracts on the Ethereum Blockchain...

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