func start errors when there is a CONTAINER_NAME app setting

[mmckechney]

Version

4.0.6610

Description

When running locally via func start and there is a settings key named CONTAINER_NAME, the host fails to start with an error like this

2025-01-10T18:49:46.653Z] A host error has occurred during startup operation '93b5a6ad-ec94-4ec1-ba40-6ea947e3d854'.
[2025-01-10T18:49:46.658Z] Microsoft.AspNetCore.DataProtection: An error occurred while trying to encrypt the provided data. Refer to the inner exception for more information. Microsoft.AspNetCore.DataProtection: The key ring does not contain a valid default protection key. The data protection system cannot create a new key because auto-generation of keys is disabled. For more information go to https://aka.ms/aspnet/dataprotectionwarning.

or in another example this error:

MS_FUNCTION_LOGS 5,,,,,ScriptApplicationHostOptionsSetup,"","ScmRunFromPackage is empty.",4.1036.1.23224,2025-01-10T19:19:44.1367206Z,,"",,,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Workers Directory set to: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers",4.1036.1.23224,2025-01-10T19:19:44.3978729Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\java\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.3984380Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.3995780Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: java",4.1036.1.23224,2025-01-10T19:19:44.4001866Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: java','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\node\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4074404Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4083169Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: node",4.1036.1.23224,2025-01-10T19:19:44.4085027Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: node','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\powershell\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4088870Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4096310Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: powershell",4.1036.1.23224,2025-01-10T19:19:44.4096555Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: powershell','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\python\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4098235Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4104689Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: python",4.1036.1.23224,2025-01-10T19:19:44.4104966Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: python','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\OneDrive\source\repos\deleteme\fail_func\bin\output\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4107190Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4114375Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME_VERSION: ",4.1036.1.23224,2025-01-10T19:19:44.4120122Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Added WorkerConfig for language: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4130035Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Workers Directory set to: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers",4.1036.1.23224,2025-01-10T19:19:44.4131665Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\java\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4133707Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4141432Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: java",4.1036.1.23224,2025-01-10T19:19:44.4141642Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: java','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\node\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4143358Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4149209Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: node",4.1036.1.23224,2025-01-10T19:19:44.4149419Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: node','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\powershell\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4150634Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4156767Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: powershell",4.1036.1.23224,2025-01-10T19:19:44.4156966Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: powershell','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\python\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4158448Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4162818Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.LanguageWorkerConfig,"","FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: python",4.1036.1.23224,2025-01-10T19:19:44.4163004Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'FUNCTIONS_WORKER_RUNTIME set to dotnet-isolated. Skipping WorkerConfig for language: python','category':'Host.LanguageWorkerConfig','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Found worker config: C:\Users\mimcke\OneDrive\source\repos\deleteme\fail_func\bin\output\worker.config.json",4.1036.1.23224,2025-01-10T19:19:44.4165481Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4172050Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","EnvironmentVariable FUNCTIONS_WORKER_RUNTIME_VERSION: ",4.1036.1.23224,2025-01-10T19:19:44.4172695Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 5,,,,,Host.LanguageWorkerConfig,"","Added WorkerConfig for language: dotnet-isolated",4.1036.1.23224,2025-01-10T19:19:44.4173482Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,,Host.Triggers.Warmup,"","Initializing Warmup Extension.",4.1036.1.23224,2025-01-10T19:19:44.4671607Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'Initializing Warmup Extension.','category':'Host.Triggers.Warmup','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,,Microsoft.Azure.WebJobs.Host.IDistributedLockManager,"","Using BlobLeaseDistributedLockManager",4.1036.1.23224,2025-01-10T19:19:44.4831451Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 4,,,,Initializing,Host.Startup,"","Initializing Host. OperationId: 'f1392de7-1d45-4527-ad5b-0f2028437c4b'.",4.1036.1.23224,2025-01-10T19:19:44.4997146Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'Initializing Host. OperationId: f1392de7-1d45-4527-ad5b-0f2028437c4b.','category':'Host.Startup','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364,'eventId':503,'eventName':'Initializing'}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 4,,,,Initialization,Host.Startup,"","Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=f1392de7-1d45-4527-ad5b-0f2028437c4b",4.1036.1.23224,2025-01-10T19:19:44.5053157Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=f1392de7-1d45-4527-ad5b-0f2028437c4b','category':'Host.Startup','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364,'eventId':504,'eventName':'Initialization'}",RAW,,1/10/2025 7:19:44 PM
MS_FUNCTION_LOGS 5,,,,LogHostInitializationSettings,Host.Startup,"","{   'OriginalFunctionWorkerRuntime': 'dotnet-isolated',   'FunctionsWorkerRuntime': 'dotnet-isolated',   'OriginalFunctionWorkerRuntimeVersion': null,   'FunctionsWorkerRuntimeVersion': null,   'FunctionsExtensionVesion': null,   'HostDirectory': 'C:\\Users\\mimcke\\OneDrive\\source\\repos\\deleteme\\fail_func\\bin\\output',   'InStandbyMode': false,   'HasBeenSpecialized': false,   'UsePlaceholderDotNetIsolated': false,   'WebSiteSku': null,   'FeatureFlags': null,   'HostingConfig': {},   'HISMode': 'Disabled' }",4.1036.1.23224,2025-01-10T19:19:44.5381752Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_LOGS 2,,,,,Host.Startup,"","Unable to load the functions payload since the app was not provisioned with valid AzureWebJobsStorage connection string.",4.1036.1.23224,2025-01-10T19:19:44.5384806Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 2,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'Unable to load the functions payload since the app was not provisioned with valid AzureWebJobsStorage connection string.','category':'Host.Startup','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Error','levelId':4,'processId':5364}",RAW,,1/10/2025 7:19:44 PM
[2025-01-10T19:19:44.538Z] Unable to load the functions payload since the app was not provisioned with valid AzureWebJobsStorage connection string.
MS_FUNCTION_LOGS 4,,,,FunctionMetadataManagerLoadingFunctionsMetadata,Host.Startup,"","Loading functions metadata",4.1036.1.23224,2025-01-10T19:19:44.5530248Z,,"",,f3f013ad-7efe-452a-b409-57a1256ad93b,,RAW,,,,
MS_FUNCTION_AZURE_MONITOR_EVENT 4,localhost:7071,Microsoft.Web/sites/functions/log,FunctionAppLogs,,"{'appName':'','roleInstance':'raw','message':'Loading functions metadata','category':'Host.Startup','hostVersion':'4.1036.1.23224','hostInstanceId':'f3f013ad-7efe-452a-b409-57a1256ad93b','level':'Information','levelId':2,'processId':5364,'eventId':314,'eventName':'FunctionMetadataManagerLoadingFunctionsMetadata'}",RAW,,1/10/2025 7:19:44 PM
[2025-01-10T19:19:44.573Z] Error while assigning execute permission.
[2025-01-10T19:19:44.574Z] Mono.Posix.NETStandard: Unable to find an entry point named 'Mono_Posix_Syscall_getcwd' in DLL 'MonoPosixHelper'.

If this settings key is renamed, such as in my example RAW_CONTAINER_NAME, this error goes away.

Steps to reproduce

To reproduce the first error, build this GitHub repo: https://github.com/mmckechney/semantic_kernel_askq. This code has a function project named DocumentQuestionsFunction. When there is a local.settings.json key of CONTAINER_NAME it gives the DataProtection error.

For the second error, you can create a new function project using:

func init --worker-runtime dotnet-isolated --target-framework net8.0
func function new --language C# --template blobtrigger --name funcRepro

edit the local.settings.json file to add a new item CONTAINER_NAME and add any value, but don't leave it empty

then start the function with func start and you will experience the second error.