[Compilers] Can't compile contract

[Zohar97]

Which compiler are you using?

• zksolc
• zkvyper

Which version of Solidity or Vyper?

0.8.9

zksolc/zkvyper version?

1.3.13

Explain the issue

I can't compile Factory contract with zksolc while I can compile on other EVM chains.
Please help to see any block in your compiler.

Link to your repo?

https://github.com/Zohar97/FactoryElastic

[uF4No]

hey @Zohar97

I've managed to get a more specific compiler error by using Solidity 0.8.20. Here is the output:

$ /home/hedgar/src/contracts/FactoryElastic/node_modules/.bin/hardhat compile
Compiling contracts for zkSync Era with zksolc v1.3.13 and solc v0.8.20
Downloading solc 0.8.20
Compiling 1 Solidity file
An unexpected error occurred:

Error: Command failed: /home/hedgar/.cache/hardhat-nodejs/compilers-v2/zksolc/zksolc-v1.3.13 --standard-json    --solc /home/hedgar/.cache/hardhat-nodejs/compilers-v2/linux-amd64/solc-linux-amd64-v0.8.20+commit.a1b79de6
Contract `contracts/Factory.sol:Factory` compiling error: The contract `contracts/Factory.sol:Factory` LLVM IR generator definition pass error: 951:17 The `EXTCODECOPY` instruction is not supportedThe contract `contracts/Factory.sol:Factory` LLVM IR generator definition pass error: 951:17 The `EXTCODECOPY` instruction is not supported


    at ChildProcess.exithandler (node:child_process:419:12)
    at ChildProcess.emit (node:events:514:28)
    at ChildProcess.emit (node:domain:489:12)
    at maybeClose (node:internal/child_process:1091:16)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:302:5) {
  code: 1,
  killed: false,
  signal: null,
  cmd: '/home/hedgar/.cache/hardhat-nodejs/compilers-v2/zksolc/zksolc-v1.3.13 --standard-json    --solc /home/hedgar/.cache/hardhat-nodejs/compilers-v2/linux-amd64/solc-linux-amd64-v0.8.20+commit.a1b79de6'
}
error Command failed with exit code 1.

Looks like your contract is using EXTCODECOPY which is not supported by zkSync Era VM. You can find more info here

[Zohar97]

thank you. I will check to see how to migrate it