I am getting the below error when trying to run a new Function. The Function is created from the HttpTrigger template on dotnet cli with no edits. I am running the most recent MacOS (but I hadn't tried this on the previous version so I don't know if that is relevant).
I am unable to reproduce this error on Windows. I factory reset the Mac and am still getting the same behaviour.
Does anyone have any ideas why the host is restarting when receiving an Httprequest, and how to resolve this?
Environment:
Core Tools Version: 4.3.0+df07acf9d837d635d1efc2c973225f4f1c8a4333 (64-bit)
Function Runtime Version: 4.1042.100.25374
.Net SDK 8.0.414
Mac OS: 26.0.1
Log
Verbose log from cmd: "func start --verbose":
cresswellp@Peters-MBP aztm11 % func start --verbose
local.settings.json found in root directory (/Users/cresswellp/Documents/git/aztm11).
Resolving worker runtime to 'dotnet-isolated'.
Determining projects to restore...
All projects are up-to-date for restore.
/usr/local/share/dotnet/sdk/9.0.305/Current/SolutionFile/ImportAfter/Microsoft.NET.Sdk.Solution.targets(36,5): warning NETSDK1194: The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds. [/Users/cresswellp/Documents/git/aztm11/aztm11.sln]
Determining projects to restore...
All projects are up-to-date for restore.
WorkerExtensions -> /Users/cresswellp/Documents/git/aztm11/obj/Debug/net8.0/WorkerExtensions/bin/Release/net8.0/Microsoft.Azure.Functions.Worker.Extensions.dll
aztm11 -> /Users/cresswellp/Documents/git/aztm11/bin/output/aztm11.dll
Build succeeded.
/usr/local/share/dotnet/sdk/9.0.305/Current/SolutionFile/ImportAfter/Microsoft.NET.Sdk.Solution.targets(36,5): warning NETSDK1194: The "--output" option isn't supported when building a solution. Specifying a solution-level output path results in all projects copying outputs to the same directory, which can lead to inconsistent builds. [/Users/cresswellp/Documents/git/aztm11/aztm11.sln]
1 Warning(s)
0 Error(s)
Time Elapsed 00:00:02.56
Selected out-of-process host.
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Azure Functions Core Tools
Core Tools Version: 4.3.0+df07acf9d837d635d1efc2c973225f4f1c8a4333 (64-bit)
Function Runtime Version: 4.1042.100.25374
[2025-10-07T21:07:36.517Z] Found /Users/cresswellp/Documents/git/aztm11/aztm11.csproj. Using for user secrets file configuration.
[2025-10-07T21:07:36.731Z] Building host: version spec: , startup suppressed: 'False', configuration suppressed: 'False', startup operation id: 'f1d837c0-688a-4d18-aede-6b7f4eb2c6f8'
[2025-10-07T21:07:36.764Z] Reading host configuration file '/Users/cresswellp/Documents/git/aztm11/bin/output/host.json'
[2025-10-07T21:07:36.765Z] Host configuration file read:
[2025-10-07T21:07:36.765Z] {
[2025-10-07T21:07:36.765Z] "version": "2.0",
[2025-10-07T21:07:36.765Z] "logging": {
[2025-10-07T21:07:36.765Z] "applicationInsights": {
[2025-10-07T21:07:36.765Z] "samplingSettings": {
[2025-10-07T21:07:36.765Z] "isEnabled": true,
[2025-10-07T21:07:36.765Z] "excludedTypes": "Request"
[2025-10-07T21:07:36.765Z] },
[2025-10-07T21:07:36.765Z] "enableLiveMetricsFilters": true
[2025-10-07T21:07:36.765Z] }
[2025-10-07T21:07:36.765Z] }
[2025-10-07T21:07:36.765Z] }
[2025-10-07T21:07:36.777Z] Extension Bundle not loaded. Loading extensions from /Users/cresswellp/Documents/git/aztm11/bin/output. BundleConfigured: False, PrecompiledFunctionApp: False, LegacyBundle: False, DotnetIsolatedApp: True, isLogicApp: False
[2025-10-07T21:07:36.777Z] Script Startup resetting load context with base path: '/Users/cresswellp/Documents/git/aztm11/bin/output/.azurefunctions'.
[2025-10-07T21:07:36.781Z] Loading startup extension 'Startup'
[2025-10-07T21:07:36.803Z] Loaded extension 'Startup' (1.0.0.0)
[2025-10-07T21:07:36.816Z] Reading host configuration file '/Users/cresswellp/Documents/git/aztm11/bin/output/host.json'
[2025-10-07T21:07:36.816Z] Host configuration file read:
[2025-10-07T21:07:36.816Z] {
[2025-10-07T21:07:36.816Z] "version": "2.0",
[2025-10-07T21:07:36.816Z] "logging": {
[2025-10-07T21:07:36.816Z] "applicationInsights": {
[2025-10-07T21:07:36.816Z] "samplingSettings": {
[2025-10-07T21:07:36.816Z] "isEnabled": true,
[2025-10-07T21:07:36.816Z] "excludedTypes": "Request"
[2025-10-07T21:07:36.816Z] },
[2025-10-07T21:07:36.816Z] "enableLiveMetricsFilters": true
[2025-10-07T21:07:36.816Z] }
[2025-10-07T21:07:36.816Z] }
[2025-10-07T21:07:36.816Z] }
[2025-10-07T21:07:36.835Z] Starting host metrics provider.
[2025-10-07T21:07:36.895Z] Initializing Warmup Extension.
[2025-10-07T21:07:36.911Z] Initializing Host. OperationId: 'f1d837c0-688a-4d18-aede-6b7f4eb2c6f8'.
[2025-10-07T21:07:36.914Z] Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=f1d837c0-688a-4d18-aede-6b7f4eb2c6f8
[2025-10-07T21:07:36.927Z] Loading functions metadata
[2025-10-07T21:07:36.927Z] Worker indexing is enabled
[2025-10-07T21:07:36.928Z] Fetching metadata for workerRuntime: dotnet-isolated
[2025-10-07T21:07:36.929Z] Reading functions metadata (Worker)
[2025-10-07T21:07:37.260Z] {
[2025-10-07T21:07:37.260Z] "ProcessId": 1020,
[2025-10-07T21:07:37.260Z] "RuntimeIdentifier": "osx-arm64",
[2025-10-07T21:07:37.260Z] "WorkerVersion": "2.1.0.0",
[2025-10-07T21:07:37.260Z] "ProductVersion": "2.1.0\u002B6ac6e358ba04b76459b87d0c03fa0db8f95a1da5",
[2025-10-07T21:07:37.260Z] "FrameworkDescription": ".NET 8.0.20",
[2025-10-07T21:07:37.260Z] "OSDescription": "Darwin 25.0.0 Darwin Kernel Version 25.0.0: Wed Sep 17 21:41:45 PDT 2025; root:xnu-12377.1.9~141/RELEASE_ARM64_T6000",
[2025-10-07T21:07:37.260Z] "OSArchitecture": "Arm64",
[2025-10-07T21:07:37.260Z] "CommandLine": "/Users/cresswellp/Documents/git/aztm11/bin/output/aztm11.dll --host 127.0.0.1 --port 49239 --workerId 5de4ef9d-6212-4444-8f19-f27524a4f99f --requestId 825716eb-cd8d-483f-8d41-49db3ce24158 --grpcMaxMessageLength 2147483647 --functions-uri http://127.0.0.1:49239/ --functions-worker-id 5de4ef9d-6212-4444-8f19-f27524a4f99f --functions-request-id 825716eb-cd8d-483f-8d41-49db3ce24158 --functions-grpc-max-message-length 2147483647"
[2025-10-07T21:07:37.260Z] }
[2025-10-07T21:07:37.348Z] 1 functions found (Worker)
[2025-10-07T21:07:37.354Z] Reading functions metadata (Custom)
[2025-10-07T21:07:37.357Z] 0 functions found (Custom)
[2025-10-07T21:07:37.360Z] 1 functions loaded
[2025-10-07T21:07:37.362Z] LoggerFilterOptions
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "MinLevel": "None",
[2025-10-07T21:07:37.362Z] "Rules": [
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": null,
[2025-10-07T21:07:37.362Z] "CategoryName": "Microsoft.Hosting.Lifetime",
[2025-10-07T21:07:37.362Z] "LogLevel": "None",
[2025-10-07T21:07:37.362Z] "Filter": null
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": "None",
[2025-10-07T21:07:37.362Z] "Filter": null
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": null,
[2025-10-07T21:07:37.362Z] "Filter": "b__0"
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": null,
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": null,
[2025-10-07T21:07:37.362Z] "Filter": "b__0"
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": null,
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": null,
[2025-10-07T21:07:37.362Z] "Filter": "b__0"
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": "None",
[2025-10-07T21:07:37.362Z] "Filter": null
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": null,
[2025-10-07T21:07:37.362Z] "Filter": "b__0"
[2025-10-07T21:07:37.362Z] },
[2025-10-07T21:07:37.362Z] {
[2025-10-07T21:07:37.362Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.362Z] "CategoryName": null,
[2025-10-07T21:07:37.362Z] "LogLevel": null,
[2025-10-07T21:07:37.362Z] "Filter": "b__0"
[2025-10-07T21:07:37.362Z] }
[2025-10-07T21:07:37.362Z] ]
[2025-10-07T21:07:37.362Z] }
[2025-10-07T21:07:37.363Z] LoggerFilterOptions
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "MinLevel": "None",
[2025-10-07T21:07:37.363Z] "Rules": [
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": null,
[2025-10-07T21:07:37.363Z] "CategoryName": "Microsoft.Hosting.Lifetime",
[2025-10-07T21:07:37.363Z] "LogLevel": "None",
[2025-10-07T21:07:37.363Z] "Filter": null
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": "None",
[2025-10-07T21:07:37.363Z] "Filter": null
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": null,
[2025-10-07T21:07:37.363Z] "Filter": "b__0"
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": null,
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": null,
[2025-10-07T21:07:37.363Z] "Filter": "b__0"
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": null,
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": null,
[2025-10-07T21:07:37.363Z] "Filter": "b__0"
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": "None",
[2025-10-07T21:07:37.363Z] "Filter": null
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": null,
[2025-10-07T21:07:37.363Z] "Filter": "b__0"
[2025-10-07T21:07:37.363Z] },
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:37.363Z] "CategoryName": null,
[2025-10-07T21:07:37.363Z] "LogLevel": null,
[2025-10-07T21:07:37.363Z] "Filter": "b__0"
[2025-10-07T21:07:37.363Z] }
[2025-10-07T21:07:37.363Z] ]
[2025-10-07T21:07:37.363Z] }
[2025-10-07T21:07:37.363Z] HttpWorkerOptions
[2025-10-07T21:07:37.363Z] {
[2025-10-07T21:07:37.363Z] "Type": 0,
[2025-10-07T21:07:37.363Z] "Description": null,
[2025-10-07T21:07:37.363Z] "Arguments": null,
[2025-10-07T21:07:37.363Z] "Port": 0,
[2025-10-07T21:07:37.363Z] "EnableForwardingHttpRequest": false,
[2025-10-07T21:07:37.363Z] "EnableProxyingHttpRequest": false,
[2025-10-07T21:07:37.363Z] "InitializationTimeout": "00:00:30"
[2025-10-07T21:07:37.363Z] }
[2025-10-07T21:07:37.363Z] FunctionResultAggregatorOptions
[2025-10-07T21:07:37.364Z] {
[2025-10-07T21:07:37.364Z] "BatchSize": 1000,
[2025-10-07T21:07:37.364Z] "FlushTimeout": "00:00:30",
[2025-10-07T21:07:37.364Z] "IsEnabled": true
[2025-10-07T21:07:37.364Z] }
[2025-10-07T21:07:37.364Z] ConcurrencyOptions
[2025-10-07T21:07:37.364Z] {
[2025-10-07T21:07:37.364Z] "DynamicConcurrencyEnabled": false,
[2025-10-07T21:07:37.364Z] "MaximumFunctionConcurrency": 500,
[2025-10-07T21:07:37.364Z] "CPUThreshold": 0.8,
[2025-10-07T21:07:37.364Z] "SnapshotPersistenceEnabled": true
[2025-10-07T21:07:37.364Z] }
[2025-10-07T21:07:37.364Z] SingletonOptions
[2025-10-07T21:07:37.364Z] {
[2025-10-07T21:07:37.364Z] "LockPeriod": "00:00:15",
[2025-10-07T21:07:37.364Z] "ListenerLockPeriod": "00:00:15",
[2025-10-07T21:07:37.364Z] "LockAcquisitionTimeout": "10675199.02:48:05.4775807",
[2025-10-07T21:07:37.364Z] "LockAcquisitionPollingInterval": "00:00:05",
[2025-10-07T21:07:37.364Z] "ListenerLockRecoveryPollingInterval": "00:01:00"
[2025-10-07T21:07:37.364Z] }
[2025-10-07T21:07:37.364Z] ScaleOptions
[2025-10-07T21:07:37.364Z] {
[2025-10-07T21:07:37.364Z] "ScaleMetricsMaxAge": "00:02:00",
[2025-10-07T21:07:37.364Z] "ScaleMetricsSampleInterval": "00:00:10",
[2025-10-07T21:07:37.364Z] "MetricsPurgeEnabled": true,
[2025-10-07T21:07:37.364Z] "IsTargetScalingEnabled": true,
[2025-10-07T21:07:37.364Z] "IsRuntimeScalingEnabled": false
[2025-10-07T21:07:37.364Z] }
[2025-10-07T21:07:37.364Z] Starting JobHost
[2025-10-07T21:07:37.366Z] Starting Host (HostId=petersmbp-1658390066, InstanceId=6b23c97c-8826-44a4-a7b4-f406cb1cc1fb, Version=4.1042.100.25374, ProcessId=1008, AppDomainId=1, InDebugMode=False, InDiagnosticMode=False, FunctionsExtensionVersion=(null))
[2025-10-07T21:07:37.382Z] Generating 1 job function(s)
[2025-10-07T21:07:37.382Z] Worker process started and initialized.
[2025-10-07T21:07:37.398Z] Found the following functions:
[2025-10-07T21:07:37.398Z] Host.Functions.HttpTrigger1
[2025-10-07T21:07:37.398Z]
[2025-10-07T21:07:37.402Z] HttpOptions
[2025-10-07T21:07:37.402Z] {
[2025-10-07T21:07:37.402Z] "DynamicThrottlesEnabled": false,
[2025-10-07T21:07:37.402Z] "EnableChunkedRequestBinding": false,
[2025-10-07T21:07:37.402Z] "MaxConcurrentRequests": -1,
[2025-10-07T21:07:37.402Z] "MaxOutstandingRequests": -1,
[2025-10-07T21:07:37.402Z] "RoutePrefix": "api"
[2025-10-07T21:07:37.402Z] }
[2025-10-07T21:07:37.402Z] Initializing function HTTP routes
[2025-10-07T21:07:37.402Z] Mapped function route 'api/HttpTrigger1' [get,post] to 'HttpTrigger1'
[2025-10-07T21:07:37.402Z]
[2025-10-07T21:07:37.405Z] Host initialized (36ms)
[2025-10-07T21:07:37.406Z] Host started (39ms)
[2025-10-07T21:07:37.406Z] Job host started
Functions:
HttpTrigger1: [GET,POST] http://localhost:7071/api/HttpTrigger1
[2025-10-07T21:07:42.371Z] Host lock lease acquired by instance ID '000000000000000000000000F04F8DEC'.
[2025-10-07T21:07:43.545Z] Restarting host.
[2025-10-07T21:07:43.556Z] Stopping JobHost
[2025-10-07T21:07:43.559Z] Job host stopped
[2025-10-07T21:07:43.570Z] Building host: version spec: , startup suppressed: 'False', configuration suppressed: 'False', startup operation id: 'efb155c7-cd7c-435b-9dd6-7faa08dbb4ff'
[2025-10-07T21:07:43.613Z] Reading host configuration file '/Users/cresswellp/Documents/git/aztm11/bin/output/host.json'
[2025-10-07T21:07:43.613Z] Host configuration file read:
[2025-10-07T21:07:43.613Z] {
[2025-10-07T21:07:43.613Z] "version": "2.0",
[2025-10-07T21:07:43.613Z] "logging": {
[2025-10-07T21:07:43.613Z] "applicationInsights": {
[2025-10-07T21:07:43.613Z] "samplingSettings": {
[2025-10-07T21:07:43.613Z] "isEnabled": true,
[2025-10-07T21:07:43.613Z] "excludedTypes": "Request"
[2025-10-07T21:07:43.613Z] },
[2025-10-07T21:07:43.613Z] "enableLiveMetricsFilters": true
[2025-10-07T21:07:43.613Z] }
[2025-10-07T21:07:43.613Z] }
[2025-10-07T21:07:43.613Z] }
[2025-10-07T21:07:43.614Z] Extension Bundle not loaded. Loading extensions from /Users/cresswellp/Documents/git/aztm11/bin/output. BundleConfigured: False, PrecompiledFunctionApp: False, LegacyBundle: False, DotnetIsolatedApp: True, isLogicApp: False
[2025-10-07T21:07:43.614Z] Script Startup resetting load context with base path: '/Users/cresswellp/Documents/git/aztm11/bin/output/.azurefunctions'.
[2025-10-07T21:07:43.616Z] Loading startup extension 'Startup'
[2025-10-07T21:07:43.623Z] Loaded extension 'Startup' (1.0.0.0)
[2025-10-07T21:07:43.626Z] Reading host configuration file '/Users/cresswellp/Documents/git/aztm11/bin/output/host.json'
[2025-10-07T21:07:43.626Z] Host configuration file read:
[2025-10-07T21:07:43.626Z] {
[2025-10-07T21:07:43.626Z] "version": "2.0",
[2025-10-07T21:07:43.626Z] "logging": {
[2025-10-07T21:07:43.626Z] "applicationInsights": {
[2025-10-07T21:07:43.626Z] "samplingSettings": {
[2025-10-07T21:07:43.626Z] "isEnabled": true,
[2025-10-07T21:07:43.626Z] "excludedTypes": "Request"
[2025-10-07T21:07:43.626Z] },
[2025-10-07T21:07:43.626Z] "enableLiveMetricsFilters": true
[2025-10-07T21:07:43.626Z] }
[2025-10-07T21:07:43.626Z] }
[2025-10-07T21:07:43.626Z] }
[2025-10-07T21:07:43.638Z] Initializing Warmup Extension.
[2025-10-07T21:07:43.641Z] Initializing Host. OperationId: 'efb155c7-cd7c-435b-9dd6-7faa08dbb4ff'.
[2025-10-07T21:07:43.641Z] Host initialization: ConsecutiveErrors=0, StartupCount=2, OperationId=efb155c7-cd7c-435b-9dd6-7faa08dbb4ff
[2025-10-07T21:07:43.644Z] Loading functions metadata
[2025-10-07T21:07:43.644Z] Worker indexing is enabled
[2025-10-07T21:07:43.644Z] Fetching metadata for workerRuntime: dotnet-isolated
[2025-10-07T21:07:43.644Z] Reading functions metadata (Worker)
[2025-10-07T21:07:43.644Z] Reading functions metadata (Custom)
[2025-10-07T21:07:43.644Z] 0 functions found (Custom)
[2025-10-07T21:07:43.645Z] 1 functions loaded
[2025-10-07T21:07:43.645Z] LoggerFilterOptions
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "MinLevel": "None",
[2025-10-07T21:07:43.645Z] "Rules": [
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": null,
[2025-10-07T21:07:43.645Z] "CategoryName": "Microsoft.Hosting.Lifetime",
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[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
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[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
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[2025-10-07T21:07:43.645Z] {
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[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": null,
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[2025-10-07T21:07:43.645Z] "Filter": "b__0"
[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
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[2025-10-07T21:07:43.645Z] "Filter": null
[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
[2025-10-07T21:07:43.645Z] "LogLevel": null,
[2025-10-07T21:07:43.645Z] "Filter": "b__0"
[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
[2025-10-07T21:07:43.645Z] "LogLevel": null,
[2025-10-07T21:07:43.645Z] "Filter": "b__0"
[2025-10-07T21:07:43.645Z] }
[2025-10-07T21:07:43.645Z] ]
[2025-10-07T21:07:43.645Z] }
[2025-10-07T21:07:43.645Z] LoggerFilterOptions
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "MinLevel": "None",
[2025-10-07T21:07:43.645Z] "Rules": [
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": null,
[2025-10-07T21:07:43.645Z] "CategoryName": "Microsoft.Hosting.Lifetime",
[2025-10-07T21:07:43.645Z] "LogLevel": "None",
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[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
[2025-10-07T21:07:43.645Z] "LogLevel": "None",
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[2025-10-07T21:07:43.645Z] },
[2025-10-07T21:07:43.645Z] {
[2025-10-07T21:07:43.645Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:43.645Z] "CategoryName": null,
[2025-10-07T21:07:43.645Z] "LogLevel": null,
[2025-10-07T21:07:43.645Z] "Filter": "b__0"
[2025-10-07T21:07:43.646Z] },
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ProviderName": null,
[2025-10-07T21:07:43.646Z] "CategoryName": null,
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[2025-10-07T21:07:43.646Z] "Filter": "b__0"
[2025-10-07T21:07:43.646Z] },
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ProviderName": null,
[2025-10-07T21:07:43.646Z] "CategoryName": null,
[2025-10-07T21:07:43.646Z] "LogLevel": null,
[2025-10-07T21:07:43.646Z] "Filter": "b__0"
[2025-10-07T21:07:43.646Z] },
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:43.646Z] "CategoryName": null,
[2025-10-07T21:07:43.646Z] "LogLevel": "None",
[2025-10-07T21:07:43.646Z] "Filter": null
[2025-10-07T21:07:43.646Z] },
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[2025-10-07T21:07:43.646Z] "CategoryName": null,
[2025-10-07T21:07:43.646Z] "LogLevel": null,
[2025-10-07T21:07:43.646Z] "Filter": "b__0"
[2025-10-07T21:07:43.646Z] },
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ProviderName": "Azure.Functions.Cli.Diagnostics.ColoredConsoleLoggerProvider",
[2025-10-07T21:07:43.646Z] "CategoryName": null,
[2025-10-07T21:07:43.646Z] "LogLevel": null,
[2025-10-07T21:07:43.646Z] "Filter": "b__0"
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] ]
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] HttpWorkerOptions
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "Type": 0,
[2025-10-07T21:07:43.646Z] "Description": null,
[2025-10-07T21:07:43.646Z] "Arguments": null,
[2025-10-07T21:07:43.646Z] "Port": 0,
[2025-10-07T21:07:43.646Z] "EnableForwardingHttpRequest": false,
[2025-10-07T21:07:43.646Z] "EnableProxyingHttpRequest": false,
[2025-10-07T21:07:43.646Z] "InitializationTimeout": "00:00:30"
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] FunctionResultAggregatorOptions
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "BatchSize": 1000,
[2025-10-07T21:07:43.646Z] "FlushTimeout": "00:00:30",
[2025-10-07T21:07:43.646Z] "IsEnabled": true
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] ConcurrencyOptions
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "DynamicConcurrencyEnabled": false,
[2025-10-07T21:07:43.646Z] "MaximumFunctionConcurrency": 500,
[2025-10-07T21:07:43.646Z] "CPUThreshold": 0.8,
[2025-10-07T21:07:43.646Z] "SnapshotPersistenceEnabled": true
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] SingletonOptions
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "LockPeriod": "00:00:15",
[2025-10-07T21:07:43.646Z] "ListenerLockPeriod": "00:00:15",
[2025-10-07T21:07:43.646Z] "LockAcquisitionTimeout": "10675199.02:48:05.4775807",
[2025-10-07T21:07:43.646Z] "LockAcquisitionPollingInterval": "00:00:05",
[2025-10-07T21:07:43.646Z] "ListenerLockRecoveryPollingInterval": "00:01:00"
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] ScaleOptions
[2025-10-07T21:07:43.646Z] {
[2025-10-07T21:07:43.646Z] "ScaleMetricsMaxAge": "00:02:00",
[2025-10-07T21:07:43.646Z] "ScaleMetricsSampleInterval": "00:00:10",
[2025-10-07T21:07:43.646Z] "MetricsPurgeEnabled": true,
[2025-10-07T21:07:43.646Z] "IsTargetScalingEnabled": true,
[2025-10-07T21:07:43.646Z] "IsRuntimeScalingEnabled": false
[2025-10-07T21:07:43.646Z] }
[2025-10-07T21:07:43.646Z] Starting JobHost
[2025-10-07T21:07:43.647Z] Starting Host (HostId=petersmbp-1658390066, InstanceId=df85f462-e169-4888-b5a5-ed6ff612a714, Version=4.1042.100.25374, ProcessId=1008, AppDomainId=1, InDebugMode=False, InDiagnosticMode=False, FunctionsExtensionVersion=(null))
[2025-10-07T21:07:43.647Z] Generating 1 job function(s)
[2025-10-07T21:07:43.647Z] Worker process started and initialized.
[2025-10-07T21:07:43.649Z] Found the following functions:
[2025-10-07T21:07:43.649Z] Host.Functions.HttpTrigger1
[2025-10-07T21:07:43.649Z]
[2025-10-07T21:07:43.649Z] HttpOptions
[2025-10-07T21:07:43.649Z] {
[2025-10-07T21:07:43.649Z] "DynamicThrottlesEnabled": false,
[2025-10-07T21:07:43.649Z] "EnableChunkedRequestBinding": false,
[2025-10-07T21:07:43.649Z] Initializing function HTTP routes
[2025-10-07T21:07:43.649Z] "MaxConcurrentRequests": -1,
[2025-10-07T21:07:43.649Z] "MaxOutstandingRequests": -1,
[2025-10-07T21:07:43.649Z] Mapped function route 'api/HttpTrigger1' [get,post] to 'HttpTrigger1'
[2025-10-07T21:07:43.649Z]
[2025-10-07T21:07:43.649Z] "RoutePrefix": "api"
[2025-10-07T21:07:43.649Z] }
[2025-10-07T21:07:43.649Z] Host initialized (2ms)
[2025-10-07T21:07:43.649Z] Host started (2ms)
[2025-10-07T21:07:43.649Z] Job host started
[2025-10-07T21:07:43.654Z] Worker failed to load function: 'HttpTrigger1' with functionId: '3219622548'.
[2025-10-07T21:07:43.654Z] Result: Failure
[2025-10-07T21:07:43.654Z] Exception: System.InvalidOperationException: Unable to load Function 'HttpTrigger1'. A function with the id '3219622548' name already exists.
[2025-10-07T21:07:43.654Z] at Microsoft.Azure.Functions.Worker.FunctionsApplication.LoadFunction(FunctionDefinition definition) in //src/DotNetWorker.Core/FunctionsApplication.cs:line 62
[2025-10-07T21:07:43.654Z] at Microsoft.Azure.Functions.Worker.GrpcWorker.FunctionLoadRequestHandler(FunctionLoadRequest request, IFunctionsApplication application, IMethodInfoLocator methodInfoLocator) in //src/DotNetWorker.Grpc/GrpcWorker.cs:line 268
[2025-10-07T21:07:43.654Z] Stack: at Microsoft.Azure.Functions.Worker.FunctionsApplication.LoadFunction(FunctionDefinition definition) in //src/DotNetWorker.Core/FunctionsApplication.cs:line 62
[2025-10-07T21:07:43.654Z] at Microsoft.Azure.Functions.Worker.GrpcWorker.FunctionLoadRequestHandler(FunctionLoadRequest request, IFunctionsApplication application, IMethodInfoLocator methodInfoLocator) in //src/DotNetWorker.Grpc/GrpcWorker.cs:line 268.
[2025-10-07T21:07:43.729Z] Host restarted.
^C[2025-10-07T21:07:46.342Z] Stopping host...
[2025-10-07T21:07:46.343Z] Stopping JobHost
[2025-10-07T21:07:46.343Z] Job host stopped
[2025-10-07T21:07:46.345Z] Host shutdown completed.
[2025-10-07T21:07:46.347Z] Shutting down language worker channels for runtime:dotnet-isolated
Steps to reproduce
Create new Function from vscode extension. .Net 8.0, HttpTrigger, Anonymous. Run from Vscode, or from cli using 'function start --verbose'.
I also created an issue here a few weeks ago, but not had any response yet: https://github.com/issues/created?issue=Azure%7Cazure-functions-core-tools%7C4671
