Bug: Improve error message when creating a new App Service

Describe the bug

When creating my first set of Azure App services from the command line, I got very confused by the error message I received from az webapp create.

Related command

az group create --name 'testrg' --location 'swedencentral'

az appservice plan create  --name 'MyLinuxAppServicePlan' --resource-group 'testrg' --is-linux --sku S1

# Does not work
az webapp create --name 'MyLinuxAppService' --plan 'MyLinuxAppServicePlan' -g 'testrg' --runtime 'DOTNETCORE:8.0'

# Does work
az webapp create --name 'MyLinuxAppService2' --plan 'MyLinuxAppServicePlan' -g 'testrg' --runtime 'DOTNETCORE:8.0'

Errors

I received this confusing error message:

Webapp 'MyLinuxAppService' already exists. The command will use the existing app's settings.
Unable to retrieve details of the existing app 'MyLinuxAppService'. Please check that the app is a part of the current subscription

Please improve the error message, by adding something like "MyLinuxAppService" is already used/occupied by another user, please choose a different unique name'. or "App Service Names must be globally unique".

Issue script & Debug output

telemetry.main: Begin splitting cli events and extra events, total events: 1 telemetry.client: Accumulated 0 events. Flush the clients. telemetry.main: Finish splitting cli events and extra events, cli events: 1 telemetry.save: Save telemetry record of length 3435 in cache telemetry.main: Begin creating telemetry upload process. telemetry.process: Creating upload process: "C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe C:\Program Files\Microsoft SDKs\Azure\CLI2\Lib\site-packages\azure\cli\telemetry__init.pyc C:\Users\Tore.azure" telemetry.process: Return from creating process telemetry.main: Finish creating telemetry upload process. cli.knack.cli: Command arguments: ['webapp', 'create', '--name', 'MyLinuxAppService', '--plan', 'MyLinuxAppServicePlan', '-g', 'testrg', '--runtime', 'DOTNETCORE:8.0', '--debug'] cli.knack.cli: init debug log: Enable color in terminal. Enable VT mode. cli.knack.cli: Event: Cli.PreExecute [] cli.knack.cli: Event: CommandParser.OnGlobalArgumentsCreate [<function CLILogging.on_global_arguments at 0x000001E4091AB880>, <function OutputProducer.on_global_arguments at 0x000001E409336020>, <function CLIQuery.on_global_arguments at 0x000001E409363BA0>] cli.knack.cli: Event: CommandInvoker.OnPreCommandTableCreate [] cli.azure.cli.core: Modules found from index for 'webapp': ['azure.cli.command_modules.appservice', 'azure.cli.command_modules.serviceconnector'] cli.azure.cli.core: Loading command modules: cli.azure.cli.core: Name Load Time Groups Commands cli.azure.cli.core: appservice 0.239 73 260 cli.azure.cli.core: serviceconnector 0.019 16 244 cli.azure.cli.core: Total (2) 0.258 89 504 cli.azure.cli.core: Loaded 87 groups, 504 commands. cli.azure.cli.core: Found a match in the command table. cli.azure.cli.core: Raw command : webapp create cli.azure.cli.core: Command table: webapp create cli.knack.cli: Event: CommandInvoker.OnPreCommandTableTruncate [<function AzCliLogging.init_command_file_logging at 0x000001E40C25AA20>] cli.azure.cli.core.azlogging: metadata file logging enabled - writing logs to 'C:\Users\Tore.azure\commands\2024-02-15.08-49-30.webapp_create.17580.log'. az_command_data_logger: command args: webapp create --name {} --plan {} -g {} --runtime {} --debug cli.knack.cli: Event: CommandInvoker.OnPreArgumentLoad [<function register_global_subscription_argument..add_subscription_parameter at 0x000001E40C292E80>] cli.knack.cli: Event: CommandInvoker.OnPostArgumentLoad [] cli.knack.cli: Event: CommandInvoker.OnPostCommandTableCreate [<function register_ids_argument..add_ids_arguments at 0x000001E40C2B4F40>, <function register_cache_arguments..add_cache_arguments at 0x000001E40C2B5080>] cli.knack.cli: Event: CommandInvoker.OnCommandTableLoaded [] cli.knack.cli: Event: CommandInvoker.OnPreParseArgs [] cli.knack.cli: Event: CommandInvoker.OnPostParseArgs [<function OutputProducer.handle_output_argument at 0x000001E4093360C0>, <function CLIQuery.handle_query_parameter at 0x000001E409363C40>, <function register_ids_argument..parse_ids_arguments at 0x000001E40C2B4FE0>] cli.azure.cli.core.commands.client_factory: Getting management service client client_type=WebSiteManagementClient cli.azure.cli.core.auth.persistence: build_persistence: location='C:\Users\Tore\.azure\msal_token_cache.bin', encrypt=True cli.azure.cli.core.auth.binary_cache: load: C:\Users\Tore.azure\msal_http_cache.bin urllib3.util.retry: Converted retries value: 1 -> Retry(total=1, connect=None, read=None, redirect=None, status=None) cli.azure.cli.core.auth.credential_adaptor: CredentialAdaptor.get_token: scopes=('https://management.core.windows.net//.default',), kwargs={} cli.azure.cli.core.auth.msal_authentication: UserCredential.get_token: scopes=('https://management.core.windows.net//.default',), claims=None, kwargs={} msal.application: Cache hit an AT msal.telemetry: Generate or reuse correlation_id: d1f6664c-c0cf-492c-b895-3b062c49da41 cli.azure.cli.core.sdk.policies: Request URL: 'https://management.azure.com/subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/resourceGroups/testrg/providers/Microsoft.Web/serverfarms/MyLinuxAppServicePlan?api-version=2023-01-01' cli.azure.cli.core.sdk.policies: Request method: 'GET' cli.azure.cli.core.sdk.policies: Request headers: cli.azure.cli.core.sdk.policies: 'Accept': 'application/json' cli.azure.cli.core.sdk.policies: 'x-ms-client-request-id': 'c00fa133-cbd6-11ee-867f-482ae36b555e' cli.azure.cli.core.sdk.policies: 'CommandName': 'webapp create' cli.azure.cli.core.sdk.policies: 'ParameterSetName': '--name --plan -g --runtime --debug' cli.azure.cli.core.sdk.policies: 'User-Agent': 'AZURECLI/2.57.0 (MSI) azsdk-python-azure-mgmt-web/7.2.0 Python/3.11.7 (Windows-10-10.0.19045-SP0)' cli.azure.cli.core.sdk.policies: 'Authorization': '*' cli.azure.cli.core.sdk.policies: Request body: cli.azure.cli.core.sdk.policies: This request has no body urllib3.connectionpool: Starting new HTTPS connection (1): management.azure.com:443 urllib3.connectionpool: https://management.azure.com:443 "GET /subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/resourceGroups/testrg/providers/Microsoft.Web/serverfarms/MyLinuxAppServicePlan?api-version=2023-01-01 HTTP/1.1" 200 None cli.azure.cli.core.sdk.policies: Response status: 200 cli.azure.cli.core.sdk.policies: Response headers: cli.azure.cli.core.sdk.policies: 'Cache-Control': 'no-cache' cli.azure.cli.core.sdk.policies: 'Pragma': 'no-cache' cli.azure.cli.core.sdk.policies: 'Transfer-Encoding': 'chunked' cli.azure.cli.core.sdk.policies: 'Content-Type': 'application/json' cli.azure.cli.core.sdk.policies: 'Content-Encoding': 'gzip' cli.azure.cli.core.sdk.policies: 'Expires': '-1' cli.azure.cli.core.sdk.policies: 'Vary': 'Accept-Encoding' cli.azure.cli.core.sdk.policies: 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains' cli.azure.cli.core.sdk.policies: 'x-ms-request-id': 'd2bfd533-95d3-456d-a13e-a5f8a6f719a3' cli.azure.cli.core.sdk.policies: 'Server': 'Microsoft-IIS/10.0' cli.azure.cli.core.sdk.policies: 'X-AspNet-Version': '4.0.30319' cli.azure.cli.core.sdk.policies: 'X-Powered-By': 'ASP.NET' cli.azure.cli.core.sdk.policies: 'x-ms-ratelimit-remaining-subscription-reads': '11976' cli.azure.cli.core.sdk.policies: 'x-ms-correlation-request-id': 'bedbfca8-2493-44a8-b5d6-cb6499f1f7b0' cli.azure.cli.core.sdk.policies: 'x-ms-routing-request-id': 'SWEDENCENTRAL:20240215T074931Z:bedbfca8-2493-44a8-b5d6-cb6499f1f7b0' cli.azure.cli.core.sdk.policies: 'X-Content-Type-Options': 'nosniff' cli.azure.cli.core.sdk.policies: 'Date': 'Thu, 15 Feb 2024 07:49:31 GMT' cli.azure.cli.core.sdk.policies: Response content: cli.azure.cli.core.sdk.policies: {"id":"/subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/resourceGroups/testrg/providers/Microsoft.Web/serverfarms/MyLinuxAppServicePlan","name":"MyLinuxAppServicePlan","type":"Microsoft.Web/serverfarms","kind":"linux","location":"Sweden Central","properties":{"serverFarmId":19216,"name":"MyLinuxAppServicePlan","workerSize":"Default","workerSizeId":0,"workerTierName":null,"numberOfWorkers":1,"currentWorkerSize":"Default","currentWorkerSizeId":0,"currentNumberOfWorkers":1,"status":"Ready","webSpace":"testrg-SwedenCentralwebspace-Linux","subscription":"b78d216b-d714-4664-b39a-26ef8dbcfdf1","adminSiteName":null,"hostingEnvironment":null,"hostingEnvironmentProfile":null,"maximumNumberOfWorkers":10,"planName":"VirtualDedicatedPlan","adminRuntimeSiteName":null,"computeMode":"Dedicated","siteMode":null,"geoRegion":"Sweden Central","perSiteScaling":false,"elasticScaleEnabled":false,"maximumElasticWorkerCount":1,"numberOfSites":0,"hostingEnvironmentId":null,"isSpot":false,"spotExpirationTime":null,"freeOfferExpirationTime":null,"tags":null,"kind":"linux","resourceGroup":"testrg","reserved":true,"isXenon":false,"hyperV":false,"mdmId":"waws-prod-sec-003_19216","targetWorkerCount":0,"targetWorkerSizeId":0,"provisioningState":"Succeeded","webSiteId":null,"existingServerFarmIds":null,"kubeEnvironmentProfile":null,"zoneRedundant":false,"migrateToVMSS":null,"vnetConnectionsUsed":0,"vnetConnectionsMax":2,"createdTime":"2024-02-15T07:49:27.03"},"sku":{"name":"S1","tier":"Standard","size":"S1","family":"S","capacity":1}} cli.azure.cli.core.commands.client_factory: Getting management service client client_type=WebSiteManagementClient urllib3.util.retry: Converted retries value: 1 -> Retry(total=1, connect=None, read=None, redirect=None, status=None) msal.authority: openid_config = {'token_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/token', 'token_endpoint_auth_methods_supported': ['client_secret_post', 'private_key_jwt', 'client_secret_basic'], 'jwks_uri': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/discovery/v2.0/keys', 'response_modes_supported': ['query', 'fragment', 'form_post'], 'subject_types_supported': ['pairwise'], 'id_token_signing_alg_values_supported': ['RS256'], 'response_types_supported': ['code', 'id_token', 'code id_token', 'id_token token'], 'scopes_supported': ['openid', 'profile', 'email', 'offline_access'], 'issuer': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/v2.0', 'request_uri_parameter_supported': False, 'userinfo_endpoint': 'https://graph.microsoft.com/oidc/userinfo', 'authorization_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/authorize', 'device_authorization_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/devicecode', 'http_logout_supported': True, 'frontchannel_logout_supported': True, 'end_session_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/logout', 'claims_supported': ['sub', 'iss', 'cloud_instance_name', 'cloud_instance_host_name', 'cloud_graph_host_name', 'msgraph_host', 'aud', 'exp', 'iat', 'auth_time', 'acr', 'nonce', 'preferred_username', 'name', 'tid', 'ver', 'at_hash', 'c_hash', 'email'], 'kerberos_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/kerberos', 'tenant_region_scope': 'EU', 'cloud_instance_name': 'microsoftonline.com', 'cloud_graph_host_name': 'graph.windows.net', 'msgraph_host': 'graph.microsoft.com', 'rbac_url': 'https://pas.windows.net'} msal.application: Broker enabled? False cli.azure.cli.core.commands.client_factory: Getting management service client client_type=WebSiteManagementClient urllib3.util.retry: Converted retries value: 1 -> Retry(total=1, connect=None, read=None, redirect=None, status=None) msal.authority: openid_config = {'token_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/token', 'token_endpoint_auth_methods_supported': ['client_secret_post', 'private_key_jwt', 'client_secret_basic'], 'jwks_uri': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/discovery/v2.0/keys', 'response_modes_supported': ['query', 'fragment', 'form_post'], 'subject_types_supported': ['pairwise'], 'id_token_signing_alg_values_supported': ['RS256'], 'response_types_supported': ['code', 'id_token', 'code id_token', 'id_token token'], 'scopes_supported': ['openid', 'profile', 'email', 'offline_access'], 'issuer': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/v2.0', 'request_uri_parameter_supported': False, 'userinfo_endpoint': 'https://graph.microsoft.com/oidc/userinfo', 'authorization_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/authorize', 'device_authorization_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/devicecode', 'http_logout_supported': True, 'frontchannel_logout_supported': True, 'end_session_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/oauth2/v2.0/logout', 'claims_supported': ['sub', 'iss', 'cloud_instance_name', 'cloud_instance_host_name', 'cloud_graph_host_name', 'msgraph_host', 'aud', 'exp', 'iat', 'auth_time', 'acr', 'nonce', 'preferred_username', 'name', 'tid', 'ver', 'at_hash', 'c_hash', 'email'], 'kerberos_endpoint': 'https://login.microsoftonline.com/567d82a1-7f61-4da2-b955-d3244ea6e976/kerberos', 'tenant_region_scope': 'EU', 'cloud_instance_name': 'microsoftonline.com', 'cloud_graph_host_name': 'graph.windows.net', 'msgraph_host': 'graph.microsoft.com', 'rbac_url': 'https://pas.windows.net'} msal.application: Broker enabled? False cli.azure.cli.core.auth.credential_adaptor: CredentialAdaptor.get_token: scopes=('https://management.core.windows.net//.default',), kwargs={} cli.azure.cli.core.auth.msal_authentication: UserCredential.get_token: scopes=('https://management.core.windows.net//.default',), claims=None, kwargs={} msal.application: Cache hit an AT msal.telemetry: Generate or reuse correlation_id: 298f8279-3a08-45ca-9bab-a6b3d2c88cc2 cli.azure.cli.core.sdk.policies: Request URL: 'https://management.azure.com/subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/providers/Microsoft.Web/checknameavailability?api-version=2023-01-01' cli.azure.cli.core.sdk.policies: Request method: 'POST' cli.azure.cli.core.sdk.policies: Request headers: cli.azure.cli.core.sdk.policies: 'Content-Type': 'application/json' cli.azure.cli.core.sdk.policies: 'Content-Length': '45' cli.azure.cli.core.sdk.policies: 'Accept': 'application/json' cli.azure.cli.core.sdk.policies: 'x-ms-client-request-id': 'c00fa133-cbd6-11ee-867f-482ae36b555e' cli.azure.cli.core.sdk.policies: 'CommandName': 'webapp create' cli.azure.cli.core.sdk.policies: 'ParameterSetName': '--name --plan -g --runtime --debug' cli.azure.cli.core.sdk.policies: 'User-Agent': 'AZURECLI/2.57.0 (MSI) azsdk-python-azure-mgmt-web/7.2.0 Python/3.11.7 (Windows-10-10.0.19045-SP0)' cli.azure.cli.core.sdk.policies: 'Authorization': '*' cli.azure.cli.core.sdk.policies: Request body: cli.azure.cli.core.sdk.policies: {"name": "MyLinuxAppService", "type": "Site"} urllib3.connectionpool: Starting new HTTPS connection (1): management.azure.com:443 urllib3.connectionpool: https://management.azure.com:443 "POST /subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/providers/Microsoft.Web/checknameavailability?api-version=2023-01-01 HTTP/1.1" 200 None cli.azure.cli.core.sdk.policies: Response status: 200 cli.azure.cli.core.sdk.policies: Response headers: cli.azure.cli.core.sdk.policies: 'Cache-Control': 'no-cache' cli.azure.cli.core.sdk.policies: 'Pragma': 'no-cache' cli.azure.cli.core.sdk.policies: 'Transfer-Encoding': 'chunked' cli.azure.cli.core.sdk.policies: 'Content-Type': 'application/json' cli.azure.cli.core.sdk.policies: 'Content-Encoding': 'gzip' cli.azure.cli.core.sdk.policies: 'Expires': '-1' cli.azure.cli.core.sdk.policies: 'Vary': 'Accept-Encoding' cli.azure.cli.core.sdk.policies: 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains' cli.azure.cli.core.sdk.policies: 'x-ms-request-id': '96fc1c77-5601-49fb-b872-4952f7c525a9' cli.azure.cli.core.sdk.policies: 'Server': 'Microsoft-IIS/10.0' cli.azure.cli.core.sdk.policies: 'X-AspNet-Version': '4.0.30319' cli.azure.cli.core.sdk.policies: 'X-Powered-By': 'ASP.NET' cli.azure.cli.core.sdk.policies: 'x-ms-ratelimit-remaining-subscription-reads': '11987' cli.azure.cli.core.sdk.policies: 'x-ms-correlation-request-id': '975cbd54-9de4-4160-8835-3fde8a3a16eb' cli.azure.cli.core.sdk.policies: 'x-ms-routing-request-id': 'SWEDENCENTRAL:20240215T074932Z:975cbd54-9de4-4160-8835-3fde8a3a16eb' cli.azure.cli.core.sdk.policies: 'X-Content-Type-Options': 'nosniff' cli.azure.cli.core.sdk.policies: 'Date': 'Thu, 15 Feb 2024 07:49:31 GMT' cli.azure.cli.core.sdk.policies: Response content: cli.azure.cli.core.sdk.policies: {"nameAvailable":false,"reason":"AlreadyExists","message":"Hostname 'MyLinuxAppService' already exists. Please select a different name."} cli.azure.cli.command_modules.appservice.custom: Webapp 'MyLinuxAppService' already exists. The command will use the existing app's settings. cli.azure.cli.core.commands.client_factory: Getting management service client client_type=WebSiteManagementClient urllib3.util.retry: Converted retries value: 1 -> Retry(total=1, connect=None, read=None, redirect=None, status=None) msal.application: Broker enabled? False cli.azure.cli.core.auth.credential_adaptor: CredentialAdaptor.get_token: scopes=('https://management.core.windows.net//.default',), kwargs={} cli.azure.cli.core.auth.msal_authentication: UserCredential.get_token: scopes=('https://management.core.windows.net//.default',), claims=None, kwargs={} msal.application: Cache hit an AT msal.telemetry: Generate or reuse correlation_id: 5d3d3267-855a-41fa-a127-0f687174afb0 cli.azure.cli.core.sdk.policies: Request URL: 'https://management.azure.com/subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/providers/Microsoft.Web/sites?api-version=2023-01-01' cli.azure.cli.core.sdk.policies: Request method: 'GET' cli.azure.cli.core.sdk.policies: Request headers: cli.azure.cli.core.sdk.policies: 'Accept': 'application/json' cli.azure.cli.core.sdk.policies: 'x-ms-client-request-id': 'c00fa133-cbd6-11ee-867f-482ae36b555e' cli.azure.cli.core.sdk.policies: 'CommandName': 'webapp create' cli.azure.cli.core.sdk.policies: 'ParameterSetName': '--name --plan -g --runtime --debug' cli.azure.cli.core.sdk.policies: 'User-Agent': 'AZURECLI/2.57.0 (MSI) azsdk-python-azure-mgmt-web/7.2.0 Python/3.11.7 (Windows-10-10.0.19045-SP0)' cli.azure.cli.core.sdk.policies: 'Authorization': '*****' cli.azure.cli.core.sdk.policies: Request body: cli.azure.cli.core.sdk.policies: This request has no body urllib3.connectionpool: Starting new HTTPS connection (1): management.azure.com:443 urllib3.connectionpool: https://management.azure.com:443 "GET /subscriptions/b78d216b-d714-4664-b39a-26ef8dbcfdf1/providers/Microsoft.Web/sites?api-version=2023-01-01 HTTP/1.1" 200 None cli.azure.cli.core.sdk.policies: Response status: 200 cli.azure.cli.core.sdk.policies: Response headers: cli.azure.cli.core.sdk.policies: 'Cache-Control': 'no-cache' cli.azure.cli.core.sdk.policies: 'Pragma': 'no-cache' cli.azure.cli.core.sdk.policies: 'Transfer-Encoding': 'chunked' cli.azure.cli.core.sdk.policies: 'Content-Type': 'application/json' cli.azure.cli.core.sdk.policies: 'Content-Encoding': 'gzip' cli.azure.cli.core.sdk.policies: 'Expires': '-1' cli.azure.cli.core.sdk.policies: 'ETag': '"1DA5F6BF12A2BBB"' cli.azure.cli.core.sdk.policies: 'Vary': 'Accept-Encoding' cli.azure.cli.core.sdk.policies: 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains' cli.azure.cli.core.sdk.policies: 'x-ms-request-id': '38138037-be37-41fc-b640-eeb9fc060318' cli.azure.cli.core.sdk.policies: 'Server': 'Microsoft-IIS/10.0' cli.azure.cli.core.sdk.policies: 'X-AspNet-Version': '4.0.30319' cli.azure.cli.core.sdk.policies: 'X-Powered-By': 'ASP.NET' cli.azure.cli.core.sdk.policies: 'x-ms-ratelimit-remaining-subscription-reads': '11967' cli.azure.cli.core.sdk.policies: 'x-ms-correlation-request-id': '5d0d41bb-0dd1-451e-9e3d-77f156db464e' cli.azure.cli.core.sdk.policies: 'x-ms-routing-request-id': 'SWEDENCENTRAL:20240215T074933Z:5d0d41bb-0dd1-451e-9e3d-77f156db464e' cli.azure.cli.core.sdk.policies: 'X-Content-Type-Options': 'nosniff' cli.azure.cli.core.sdk.policies: 'Date': 'Thu, 15 Feb 2024 07:49:32 GMT' cli.azure.cli.core.sdk.policies: Response content: ccli.azure.cli.core.azclierror: Traceback (most recent call last): File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/cli.py", line 233, in invoke File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 664, in execute File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 729, in _run_jobs_serially File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 721, in _run_job File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/command_modules/appservice/commands.py", line 46, in _ex_handler File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 698, in _run_job File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/init.py", line 334, in call__ File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/commands/command_operation.py", line 121, in handler File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/command_modules/appservice/custom.py", line 152, in create_webapp azure.cli.core.azclierror.ResourceNotFoundError: Unable to retrieve details of the existing app 'MyLinuxAppService'. Please check that the app is a part of the current subscription

cli.azure.cli.core.azclierror: Unable to retrieve details of the existing app 'MyLinuxAppService'. Please check that the app is a part of the current subscription az_command_data_logger: Unable to retrieve details of the existing app 'MyLinuxAppService'. Please check that the app is a part of the current subscription cli.knack.cli: Event: Cli.PostExecute [<function AzCliLogging.deinit_cmd_metadata_logging at 0x000001E40C25ACA0>] az_command_data_logger: exit code: 3 cli.main: Command ran in 3.719 seconds (init: 0.349, invoke: 3.371) cli.azure.cli.core.decorators: Suppress exception: Traceback (most recent call last): File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/main.py", line 62, in File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/main.py", line 55, in SystemExit: 3

During handling of the above exception, another exception occurred:

Traceback (most recent call last): File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/decorators.py", line 79, in _wrapped_func File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\azure/cli/core/telemetry.py", line 532, in _get_secrets_warning_config File "D:\a_work\1\s\build_scripts\windows\artifacts\cli\Lib\site-packages\knack/config.py", line 147, in getboolean ValueError: Not a boolean: None

Expected behavior

It should give me a better error and user experience when the app service name is already registered. As a new user the current error message is too confusing and does not guide me in how to fix it.

give me a better and clearer error message.

Environment Summary

azure-cli 2.57.0

core 2.57.0 telemetry 1.1.0

Dependencies: msal 1.26.0 azure-mgmt-resource 23.1.0b2

Python location 'C:\Program Files\Microsoft SDKs\Azure\CLI2\python.exe' Extensions directory 'C:\Users\Tore.azure\cliextensions'

Python (Windows) 3.11.7 (tags/v3.11.7:fa7a6f2, Dec 4 2023, 19:24:49) [MSC v.1937 64 bit (AMD64)]

Legal docs and information: aka.ms/AzureCliLegal

Additional context

No response

Azure / azure-cli