ERROR: Service principal 'http://bie3i8adx-reader' doesn't exist

[p31415926]

Streaming at Scale with Azure Data Explorer

Steps to be executed: CIDTM

Configuration:
. Resource Group => bie3i8
. Region => eastus
. EventHubs => TU: 2, Partitions: 2
. Data Explorer => SKU: Standard_D11_v2
. Simulators => 1

Deployment started...

***** [C] Setting up COMMON resources
creating resource group
. name: bie3i8
. location: eastus
creating storage account
. name: bie3i8storage

***** [I] Setting up INGESTION
creating eventhubs namespace
. name: bie3i8eventhubs
. capacity: 2
. capture: False
. auto-inflate: false
creating eventhub instance
. name: bie3i8in-2
. partitions: 2
creating consumer group
. name: dataexplorer

***** [D] Setting up DATABASE
checking Key Vault exists
creating KeyVault bie3i8spkv
checking service principal exists
creating service principal
WARNING: The output includes credentials that you must protect. Be sure that you do not include these credentials in your code or check the credentials into your source control. For more information, see https://aka.ms/azadsp-cli
WARNING: 'name' property in the output is deprecated and will be removed in the future. Use 'appId' instead.
getting service principal
ERROR: Service principal 'http://bie3i8adx-reader' doesn't exist

What does that mean "Service principal 'http://bie3i8adx-reader' doesn't exist "?

[p31415926]

I am using https://github.com/Azure-Samples/streaming-at-scale/blob/main/eventhubs-dataexplorer/create-solution.sh get above error message.

[p31415926]

Anybody can give me a suggestion on this?

[p31415926]

I found that some mistake in create-service-principal.sh

should change below
appId=$(az ad sp list --display-name http://$SERVICE_PRINCIPAL_KV_NAME --query appId --output tsv)
to
appId=$(az ad sp list --display-name http://$SERVICE_PRINCIPAL_KV_NAME --query "[].appId" --output tsv)

otherwise appId is blank.