"Migrations" -- only replay-protected (EIP-155) transactions allowed over RPC.

报错

Deploying 'Migrations'
   ----------------------
 *** Deployment Failed ***

"Migrations" -- only replay-protected (EIP-155) transactions allowed over RPC.


Exiting: Review successful transactions manually by checking the transaction hashes above on Etherscan.


Error:  *** Deployment Failed ***

"Migrations" -- only replay-protected (EIP-155) transactions allowed over RPC.

 修改

npm install -g truffle@5.3.0 --save

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参考：https://ethereum.stackexchange.com/questions/94418/deployment-failed-migrations-only-replay-protected-eip-155-transactions