Fatal error: Uncaught Error: The service credentials file is missing or incorrect.". 1. Make sure that you have created a project via https://console.cloud.google.com/projectcreate 2. Enable the firestore API: https://console.cloud.google.com/apis/library?project=rogue-wave-project&q=fire 3. Create service account credentials from: https://console.cloud.google.com/apis/credentials?project=rogue-wave-project More about service accounts can be read from here: https://support.google.com/cloud/answer/6158849?hl=en#serviceaccounts 4. Save the file under the following directories in your application: config/service_credentials.json Make sure also that you have accessed https://console.firebase.google.com/ and have added your project to firebase. in D:\xampp\htdocs\SSWPOS\vendor\google\grpc-gcp\cloud-apis\firestore\examples\end2end\src\config\application.config.php:16 Stack trace: #0 {main} thrown in D:\xampp\htdocs\SSWPOS\vendor\google\grpc-gcp\cloud-apis\firestore\examples\end2end\src\config\application.config.php on line 16