anchor/tests/errors/tsconfig.json

{
    "compilerOptions": {
        "types": ["mocha", "chai", "node"],
        "typeRoots": ["./node_modules/@types"],
        "lib": ["es2015"],
        "module": "commonjs",
        "target": "es6",
        "esModuleInterop": true,
        "skipLibCheck": true
    }
}