module.exports = { networks: { development: { host: "127.0.0.1", port: 9545, network_id: "4020", gasPrice: "10000000000", //10 gwei } }, compilers: { solc: { version: "0.6.12", // Fetch exact version from solc-bin (default: truffle's version) docker: true, settings: { optimizer: { enabled: true, runs: 200 // Optimize for how many times you intend to run the code }, evmVersion: "istanbul" } } }, db: { enabled: true } };