Can't create a custom token in firebase cloud functions because the service account doesn't have the necessary permissions
问题 When calling admin.auth().createCustomToken() , I get the following error: Permission iam.serviceAccounts.signBlob is required to perform this operation on service account projects/-/serviceAccounts/kaleido-maastricht@appspot.gserviceaccount.com.; Please refer to https://firebase.google.com/docs/auth/admin/create-custom-tokens for more details on how to use and troubleshoot this feature. So I go look at the mentioned service account in the IAM section of the cloud platform console, and it has