com.google.firebase.storage.StorageException: User does not have permission to access this object. code example

Example: Firebase Storage: User does not have permission to access

# under storage on the firebase console and under rules edit the rule to become

rules_version = '2';
service firebase.storage {
  match /b/{bucket}/o {
    match /{allPaths=**} {
      allow read, write;
    }
  }
}