// https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v3.2.0/contracts/introspection/IERC1820Registry.sol:3:1: ParserError: Source file requires different compiler version (current compiler is 0.7.4+commit.3f05b770.Emscripten.clang) - note that nightly builds are considered to be strictly less than the released version