Hi I am not really an expert with solidity. I have been trying to deploy OpenZeppelin Contracts for ERC20 with remix IDE, i have been getting gas estimation error. if I deploy it in testnet it deploys properly with minimal gas but on mainnet using metamask injector provider i get the error. i have …

[image] Osas: i have tried compiling with different compiler configuration EVM versions like Paris, London and even Berlin Check this answer . TLDR: Solc Version 0.8.20 has switched the default target EVM version to Shanghai.

Thank you for your response but I am not really an expert the solution you gave is talking about Hardhart but I am trying to deploy with remix. I tried using solidity complier version less than 0.8.20 but the code automatically updates compiler version to match current contract file pragma i.e 0.8.2…

Did you read the TLDR (which I have added right below that linked answer)?

Perhaps this answer helps :slight_smile:

Thanks.. But i still get the error even when i compile with Paris. I don't know what's wrong.

[image] Osas: when i compile with Paris Wow, this is truly astonishing! What part of "Shanghai" are you having problem understanding? This is from the answer which was initially given to you: [image] barakman: TLDR: Solc Version 0.8.20 has switched the default target EVM version to Sh…

I am developing on Ethereum mainnet. The error only happens on Ethereum but works on other EVM networks like polygon, BSC e.t.c

OpenZeppelin Contracts for ERC20 not deploying in remix IDE - the error I get is Gas estimation errored the transaction execution will likely fail. Returned error: gas required exceeds allowance (125068)

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barakman November 28, 2023, 5:56pm 2

Check this answer.

TLDR: Solc Version 0.8.20 has switched the default target EVM version to Shanghai.

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OpenZeppelin Contracts for ERC20 not deploying in remix IDE - the error I get is Gas estimation errored the transaction execution will likely fail. Returned error: gas required exceeds allowance (125068)

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