Fabrizio Bertone's Blog

<a href="https://blog.fbertone.it/how-to-solve-error-sending-a-transaction-requires-a-signer-operationsendtransaction-codeunsupportedoperation-versioncontracts550">How to solve error: sending a transaction requires a signer (operation=&quot;sendtransaction&quot;, code=unsupported_operation, version=contracts/5.5.0)</a> Jan 17, 2022 · by Fabrizio Bertone
<a href="https://blog.fbertone.it/hello-world-we-meet-again">Hello World, We Meet Again!</a> Nov 7, 2021 · by Fabrizio Bertone

[**How to solve error: sending a transaction requires a signer (operation="sendtransaction", code=unsupported_operation, version=contracts/5.5.0)**](https://blog.fbertone.it/how-to-solve-error-sending-a-transaction-requires-a-signer-operationsendtransaction-codeunsupportedoperation-versioncontracts550)  
Jan 17, 2022 · by Fabrizio Bertone


[**Hello World, We Meet Again!**](https://blog.fbertone.it/hello-world-we-meet-again)  
Nov 7, 2021 · by Fabrizio Bertone



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