I bought the book, "Hands-On Smart Contract Development with Solidity and Ethereum" in Japanese Edition. I run the first `truffle test` command in chapter4 in `hoscdev/chapter-4/greeter` path. ``` const GreeterContract = artifacts.require("Greeter"); contract("Greeter", () => { it("has been deployed successfully", async () => { const greeter = await GreeterContract.deployed(); assert(greeter, "contract failed to deploy"); }); }); ``` The book says the result is "Could not find artifacts got Greeter grom any sources". However, the commands stop forever.