Gas estimation failed/Error

[EVTS]

i am trying to develop a token on binance smart chain but i keep getting this error code.

Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending?
Returned error: {"jsonrpc":"2.0","error":"invalid opcode: opcode 0x5f not defined","id":354124603366989}

[ericglau]

Unable to deploy from Remix - invalid opcode: PUSH0

Indeed this is caused because of the PUSH0 opcode. It comes from EIP-3855 and was included in the Shanghai upgrade. Consider that not all chains support PUSH0 at the moment, so compiling using the Shanghai EVM version will error for those chains. The workaround is specifying an older EVM version (eg. Paris) so that the compilation doesn't produce bytecode including the PUSH0 instruction. This can be done in the following menu in Remix (compiler -> advanced configuration): [Captura de pantalla …

[EVTS]

@Unable to deploy from Remix

Shanghai upgrade

Thank you very much.You Just solved my Stress.

Also how do i get to verify this contract address? as i made use of the openzepplin default contract.

Thank you again

[ericglau]

How to verify a contract on Etherscan/BscScan/PolygonScan

Make sure to read this post before asking a question about verification. If your issue is not addressed here, just leave a comment below. If you want to pay someone to do the verification for you, create a post in Developer Wanted. This guide applies to all Etherscan instances, including all of the following as well as their testnet explorers: etherscan.io (Ethereum) bscscan.com (Binance Smart Chain) polygonscan.com (Polygon) snowtrace.io (Avalanche) Recommendations Practice in testnet Be…

[EVTS]

thank you.

but i cant find flattener on my remix

[ericglau]

see Verify ERC20 token on Etherscan that was deployed through Remix: Step by Step Guide

[EVTS]

i eventually find it. Thanks

but i keep getting this error when i try verifying on BSC

Error! Unable to generate Contract Bytecode and ABI

[ericglau]

That is a generic error, you would need to look into it. There is a section in my previous link which mentions possible causes.