Paul Verest
  • Member for 9 months
  • Last seen more than a month ago
What is the difference between web3.js and ethers.js?
16 votes

web3.js vs. ethers.js https://medium.com/l4-media/announcing-ethers-js-a-web3-alternative-6f134fdd06f3 One major difference between ethers.js and web3 is how they handle key management and ...

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About Abi Encoder V2
4 votes

From Solidity v0.8.0 Breaking Changes https://docs.soliditylang.org/en/v0.8.0/080-breaking-changes.html ABI coder v2 is activated by default. So it is not experimental, but standard feature since ...

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TypeError: This type is only supported in the new experimental ABI encoder
2 votes

Or just use pragma solidity ^0.8.0; From Solidity v0.8.0 Breaking Changes https://docs.soliditylang.org/en/v0.8.0/080-breaking-changes.html ABI coder v2 is activated by default. So it is not ...

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Error HH411: The library openzeppelin-solidity is not installed. Try installing it using npm (for old 0.5.0 solidity code)
1 votes

Thanks to @zmy comment, pointing to https://www.npmjs.com/package/openzeppelin-solidity. 2.3.0 is earliest version on npm registry as "@openzeppelin/contracts" https://www.npmjs.com/package/@...

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What is "electrum style signature"?
1 votes

pyethereum was Python implementation of Ethreum, and it also had references to Electrum (v,r,s) is the raw Electrum-style signature of the transaction without the signature made with the private key ...

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MetaMask 9.5.0 has bug when transferring on test network?
0 votes

Well, the issue was solved by identifying that it was name of main balance currency on the HECO testnetwork, then removing the name of currency helped to overcome this bug. MetaMask Settings -> ...

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Type struct Mycontract.User memory is not implicitly convertible to expected type struct Mycontract.User storage pointer
0 votes

Variable in contract by default are of storage, i.e. they are state variables. And new struct default allocation within function is memory. Hence the compiler warning.

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