Everytime I try brownie compile I see this:
SolcInstallationError: Downloaded binary would not execute, or returned unexpected output. If this issue persists, you can try to compile from source code using `solcx.compile_solc('0.5.17')`.
I can not for the life of me figure out how to fix this error I am getting. I've read so many posts and tried so many things but I can't get it to work.
- I started using Python 3.9 in my virtualenv based on another post saying that is what worked best
- Dozens of various attempts to brew uninstall, brew install various things.
- paired that with brownie 1.19.3 -- that'd didn't help either.
- I've tried pretty much anything you can imagine with solc, and that has not helped.
- I've changed my version of solidity several times, no luck either.
I've tried so many things to fix this but I can't find an answer!
Here is the full error that I see in my terminal, and then I've also posted under this my .sol .yaml .py files.
Brownie v1.19.3 - Python development framework for Ethereum
Downloading from https://solc-bin.ethereum.org/macosx-amd64/solc-macosx-amd64-v0.5.17+commit.d19bba13
100%|█████████████████████████████████████| 30.4M/30.4M [00:27<00:00, 1.09MiB/s]
File "brownie/_cli/__main__.py", line 64, in main
importlib.import_module(f"brownie._cli.{cmd}").main()
File "brownie/_cli/compile.py", line 50, in main
proj = project.load()
File "brownie/project/main.py", line 780, in load
return Project(name, project_path)
File "brownie/project/main.py", line 188, in __init__
self.load()
File "brownie/project/main.py", line 257, in load
self._compile(changed, self._compiler_config, False)
File "brownie/project/main.py", line 100, in _compile
build_json = compiler.compile_and_format(
File "brownie/project/compiler/__init__.py", line 121, in compile_and_format
set_solc_version(version)
File "brownie/project/compiler/solidity.py", line 97, in set_solc_version
install_solc(version)
File "brownie/project/compiler/solidity.py", line 105, in install_solc
solcx.install_solc(version, show_progress=True)
File "solcx/install.py", line 466, in install_solc
raise exc
File "solcx/install.py", line 459, in install_solc
_validate_installation(version, solcx_binary_path)
File "solcx/install.py", line 636, in _validate_installation
raise SolcInstallationError(
SolcInstallationError: Downloaded binary would not execute, or returned unexpected output. If this issue persists, you can try to compile from source code using `solcx.compile_solc('0.5.17')`.
Here is my brownie-config.yaml file (when I type which solc into my terminal, this is the path I see)
compiler:
solc:
version: 0.5.17
paths:
- /opt/homebrew/bin/solc
networks:
default: polygon-zkevm-testnet
polygon-zkevm-testnet:
chainid: 1442
host: https://rpc.public.zkevm-test.net
explorer: https://testnet-zkevm.polygonscan.com
accounts:
from_key: ${PRIVATE_KEY}
from_mnemonic: ${MNEMONIC}
Here is my .sol file
// SPDX-License-Identifier: MIT
pragma solidity ^0.5.17;
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
contract LoyaltyRewards is ERC20 {
address public owner;
constructor() ERC20("LoyaltyToken", "LOYAL") {
owner = msg.sender;
_mint(msg.sender, 1000000 * 10**decimals());
}
function mint(address to, uint256 amount) public {
require(msg.sender == owner, "Only owner can mint tokens");
_mint(to, amount);
}
}
Here is my deploy.py file.
from brownie import LoyaltyRewards, accounts, network, config
def main():
dev = accounts.add(config['wallets']['from_key'])
print(f"Deploying to {network.show_active()} using account: {dev}")
# Deploy the LoyaltyRewards smart contract
loyalty_rewards = LoyaltyRewards.deploy({'from': dev})
print(f"LoyaltyRewards contract deployed to: {loyalty_rewards.address}")
