const path = require("path"); module.exports = { // See // for more about customizing your Truffle configuration! contracts_build_directory: path.join(__dirname, "src/build/contracts"), networks: { development: { host: "localhost", port: 8545, network_id: "*" // Match any network id } }, compilers:{ solc: { version: "0.4.25", settings:{ optimizer: { enabled: true, runs: 500 } } } } };