I want to compile contracts.
Contracts have version pragma solidity 0.5.7;
Contracts use
openzeppelin-solidity / contracts / ownership / Ownable.sol
openzeppelin-solidity / contracts / math / SafeMath.sol
openzeppelin-solidity / contracts / token / ERC20 / ERC20Burnable.sol
openzeppelin-solidity / contracts / utils / Address.sol
These contracts have version
pragma solidity> = 0.6.0 <0.8.0;
truffle settings
compilers: {
solc: {
version: "0.5.7", // Fetch exact version from solc-bin (default: truffle's version)
docker: false, // Use "0.5.1" you've installed locally with docker (default: false)
settings: {// See the solidity docs for advice about optimization and evmVersion
optimizer: {
enabled: false,
runs: 200
},
evmVersion: "byzantium"
}
}
}
How do I specify the correct version for solc?
Or how can I get contracts with
pragma solidity 0.5.7; for openzeppelin-solidity
/home/zb/cLion/system/go/src/github.com/OpenBazaar/smart-contracts/contracts/registry/ContractManager.sol:5:1: ParserError: Source "openzeppelin-solidity/contracts/ownership/Ownable.sol" not found: File import callback not supported
import "openzeppelin-solidity/contracts/ownership/Ownable.sol";
^-------------------------------------------------------------^
,/home/zb/cLion/system/go/src/github.com/OpenBazaar/smart-contracts/contracts/rewards/OBRewards.sol:6:1: ParserError: Source "openzeppelin-solidity/contracts/ownership/Ownable.sol" not found: File import callback not supported
import "openzeppelin-solidity/contracts/ownership/Ownable.sol";
^-------------------------------------------------------------^
,openzeppelin-solidity/contracts/math/SafeMath.sol:3:1: ParserError: Source file requires different compiler version (current compiler is 0.5.7+commit.6da8b019.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
pragma solidity >=0.6.0 <0.8.0;
^-----------------------------^
,openzeppelin-solidity/contracts/token/ERC20/ERC20Burnable.sol:3:1: ParserError: Source file requires different compiler version (current compiler is 0.5.7+commit.6da8b019.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
pragma solidity >=0.6.0 <0.8.0;
^-----------------------------^
,openzeppelin-solidity/contracts/utils/Address.sol:3:1: ParserError: Source file requires different compiler version (current compiler is 0.5.7+commit.6da8b019.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
pragma solidity >=0.6.2 <0.8.0;
^-----------------------------^
Error: Truffle is currently using solc =0.5.7 <0.8.0, but one or more of your contracts specify "pragma solidity >=0.6.0 <0.8.0".
Please update your truffle config or pragma statement(s).
(See https://trufflesuite.com/docs/truffle/reference/configuration#compiler-configuration for information on
configuring Truffle to use a specific solc compiler version.)
Compilation failed. See above.
Truffle v5.3.7 (core: 5.3.7)
Node v16.1.0