Strange mistake to know?

[JoseRFJuniorLLMs]

Error: Cannot find module '/user_code/service-account-credentials.json' at Function.Module._resolveFilename (module.js:469:15) at Function.Module._load (module.js:417:25) at Module.require (module.js:497:17) at require (internal/module.js:20:19) at createAuthClientPromise (/user_code/node_modules/@google-cloud/speech/node_modules/google-auto-auth/index.js:57:16) at Auth.getAuthClient (/user_code/node_modules/@google-cloud/speech/node_modules/google-auto-auth/index.js:43:32) at /user_code/node_modules/@google-cloud/speech/node_modules/google-gax/lib/grpc.js:116:5 at GrpcClient._getCredentials (/user_code/node_modules/@google-cloud/speech/node_modules/google-gax/lib/grpc.js:115:10) at GrpcClient.createStub (/user_code/node_modules/@google-cloud/speech/node_modules/google-gax/lib/grpc.js:222:15) at new OperationsClient (/user_code/node_modules/@google-cloud/speech/node_modules/google-gax/lib/operations_client.js:102:32)

Should I have any credentials in this file? const speech = Speech({keyFilename: "service-account-credentials.json"});

ex: var config = { apiKey: "AIzaSyAjskV1Uf7hNmEkfzc-iWo9gSbBHyFKlwo", authDomain: "mimming-babelfire.firebaseapp.com", databaseURL: "https://mimming-babelfire.firebaseio.com", storageBucket: "mimming-babelfire.appspot.com", messagingSenderId: "913948787505" };