python - 在 Visual Studio Code 上调试 Azure 函数时出错 ('LogType' 不存在)

Question

我在 Visual Studio Code 上使用 Python 3.7.3。

使用 BlobTrigger 在本地调试非常简单的 Azure 函数会引发错误

An unhandled exception has occurred. Host is shutting down.
System.Private.CoreLib: The given key 'LogType' was not present in the dictionary.

该函数只是使用 BlobTrigger 设置函数时 VS Code 给出的默认函数(见下文)

import logging

import azure.functions as func


def main(myblob: func.InputStream):
    logging.info(f"Python blob trigger function processed blob \n"
                 f"Name: {myblob.name}\n"
                 f"Blob Size: {myblob.length} bytes")

终端的输出如下:

> Executing task: venv\Scripts\python -m pip install -r requirements.txt <

Requirement already satisfied: azure-functions==1.0.5 in d:\epiq\code\functions\blob_trigger_add\venv\lib\site-packages (from -r requirements.txt (line 1)) (1.0.5)

Terminal will be reused by tasks, press any key to close it.

> Executing task: venv\Scripts\activate ; func host start <

Found Python version 3.7.3 (python).

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Azure Functions Core Tools (2.7.1948 Commit hash: 29a0626ded3ae99c4111f66763f27bb9fb564103)
Function Runtime Version: 2.0.12888.0
[29/11/2019 20:09:00] File 'C:\Program Files (x86)\dotnet\dotnet.exe' is not found, 'dotnet' invocation will rely on the PATH environment variable.
[29/11/2019 20:09:00] Building host: startup suppressed: 'False', configuration suppressed: 'False', startup operation id: '73e149e8-6e47-438e-84b1-d6726b330145'
[29/11/2019 20:09:00] Reading host configuration file 'D:\Epiq\Code\functions\blob_trigger_add\host.json'
[29/11/2019 20:09:00] Host configuration file read:
[29/11/2019 20:09:00] {
[29/11/2019 20:09:00]   "version": "2.0",
[29/11/2019 20:09:00]   "extensionBundle": {
[29/11/2019 20:09:00]     "id": "Microsoft.Azure.Functions.ExtensionBundle",
[29/11/2019 20:09:00]     "version": "[1.*, 2.0.0)"
[29/11/2019 20:09:00]   }
[29/11/2019 20:09:00] }
[29/11/2019 20:09:00] Looking for extension bundle Microsoft.Azure.Functions.ExtensionBundle at C:\Users\zorzi\AppData\Local\Temp\Functions\ExtensionBundles\Microsoft.Azure.Functions.ExtensionBundle
[29/11/2019 20:09:00] Found a matching extension bundle at C:\Users\zorzi\AppData\Local\Temp\Functions\ExtensionBundles\Microsoft.Azure.Functions.ExtensionBundle\1.1.1
[29/11/2019 20:09:00] Fetching information on versions of extension bundle Microsoft.Azure.Functions.ExtensionBundle available on https://functionscdn.azureedge.net/public/ExtensionBundles/Microsoft.Azure.Functions.ExtensionBundle/index.json
[29/11/2019 20:09:00] Skipping bundle download since it already exists at path C:\Users\zorzi\AppData\Local\Temp\Functions\ExtensionBundles\Microsoft.Azure.Functions.ExtensionBundle\1.1.1
[29/11/2019 20:09:00] Loading Extention bundle from C:\Users\zorzi\AppData\Local\Temp\Functions\ExtensionBundles\Microsoft.Azure.Functions.ExtensionBundle\1.1.1
[29/11/2019 20:09:00] Reading functions metadata
[29/11/2019 20:09:00] 1 functions found
[29/11/2019 20:09:00] Loading startup extension 'AzureStorage'
[29/11/2019 20:09:00] Loaded extension 'AzureStorage' (3.0.10.0)
[29/11/2019 20:09:00] File 'C:\Program Files (x86)\dotnet\dotnet.exe' is not found, 'dotnet' invocation will rely on the PATH environment variable.
[29/11/2019 20:09:00] Initializing Warmup Extension.
[29/11/2019 20:09:00] Initializing Host. OperationId: '73e149e8-6e47-438e-84b1-d6726b330145'.
[29/11/2019 20:09:00] Host initialization: ConsecutiveErrors=0, StartupCount=1, OperationId=73e149e8-6e47-438e-84b1-d6726b330145
[29/11/2019 20:09:00] LoggerFilterOptions
[29/11/2019 20:09:00] {
[29/11/2019 20:09:00]   "MinLevel": "None",
[29/11/2019 20:09:00]   "Rules": [
[29/11/2019 20:09:00]     {
[29/11/2019 20:09:01]       "ProviderName": null,
[29/11/2019 20:09:01]       "CategoryName": null,
[29/11/2019 20:09:01]       "LogLevel": null,
[29/11/2019 20:09:01]       "Filter": "<AddFilter>b__0"
[29/11/2019 20:09:01]     },
[29/11/2019 20:09:01]     {
[29/11/2019 20:09:01]       "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[29/11/2019 20:09:01]       "CategoryName": null,
[29/11/2019 20:09:01]       "LogLevel": "None",
[29/11/2019 20:09:01]       "Filter": null
[29/11/2019 20:09:01]     },
[29/11/2019 20:09:01]     {
[29/11/2019 20:09:01]       "ProviderName": "Microsoft.Azure.WebJobs.Script.WebHost.Diagnostics.SystemLoggerProvider",
[29/11/2019 20:09:01]       "CategoryName": null,
[29/11/2019 20:09:01]       "LogLevel": null,
[29/11/2019 20:09:01]       "Filter": "<AddFilter>b__0"
[29/11/2019 20:09:01]     }
[29/11/2019 20:09:01]   ]
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] FunctionResultAggregatorOptions
[29/11/2019 20:09:01] {
[29/11/2019 20:09:01]   "BatchSize": 1000,
[29/11/2019 20:09:01]   "FlushTimeout": "00:00:30",
[29/11/2019 20:09:01]   "IsEnabled": true
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] SingletonOptions
[29/11/2019 20:09:01] {
[29/11/2019 20:09:01]   "LockPeriod": "00:00:15",
[29/11/2019 20:09:01]   "ListenerLockPeriod": "00:00:15",
[29/11/2019 20:09:01]   "LockAcquisitionTimeout": "10675199.02:48:05.4775807",
[29/11/2019 20:09:01]   "LockAcquisitionPollingInterval": "00:00:05",
[29/11/2019 20:09:01]   "ListenerLockRecoveryPollingInterval": "00:01:00"
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] QueuesOptions
[29/11/2019 20:09:01] {
[29/11/2019 20:09:01]   "BatchSize": 16,
[29/11/2019 20:09:01]   "NewBatchThreshold": 8,
[29/11/2019 20:09:01]   "MaxPollingInterval": "00:00:02",
[29/11/2019 20:09:01]   "MaxDequeueCount": 5,
[29/11/2019 20:09:01]   "VisibilityTimeout": "00:00:00"
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] BlobsOptions
[29/11/2019 20:09:01] {
[29/11/2019 20:09:01]   "CentralizedPoisonQueue": false
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] HttpOptions
[29/11/2019 20:09:01] {
[29/11/2019 20:09:01]   "DynamicThrottlesEnabled": false,
[29/11/2019 20:09:01]   "MaxConcurrentRequests": -1,
[29/11/2019 20:09:01]   "MaxOutstandingRequests": -1,
[29/11/2019 20:09:01]   "RoutePrefix": "api"
[29/11/2019 20:09:01] }
[29/11/2019 20:09:01] Starting JobHost
[29/11/2019 20:09:01] Starting Host (HostId=gz-1173307470, InstanceId=09d46616-c233-4dd9-930f-22b04ad79087, Version=2.0.12888.0, ProcessId=6164, AppDomainId=1, InDebugMode=False, InDiagnosticMode=False, FunctionsExtensionVersion=(null))
[29/11/2019 20:09:01] Loading functions metadata
[29/11/2019 20:09:01] 1 functions loaded
[29/11/2019 20:09:01] Loading proxies metadata
[29/11/2019 20:09:01] Initializing Azure Function proxies
[29/11/2019 20:09:01] 0 proxies loaded
[29/11/2019 20:09:01] Starting worker process:python  c:/Users/zorzi/.vscode/extensions/ms-python.python-2019.11.50794/pythonFiles/ptvsd_launcher.py --default --host 127.0.0.1 --port 9091 --wait "C:\ProgramData\chocolatey\lib\azure-functions-core-tools\tools\workers\python\3.7/WINDOWS/X64/worker.py" --host 127.0.0.1 --port 51997 --workerId 5649816b-40f6-45bd-99f3-3c2206db4644 --requestId 7c027cc0-3291-446f-9bb3-b6fafdd06bf0 --grpcMaxMessageLength 134217728
[29/11/2019 20:09:01] python process with Id=13884 started
[29/11/2019 20:09:01] Generating 1 job function(s)
[29/11/2019 20:09:01] Found the following functions:
[29/11/2019 20:09:01] Host.Functions.BlobTrigger
[29/11/2019 20:09:01]
[29/11/2019 20:09:01] Initializing function HTTP routes
[29/11/2019 20:09:01] No HTTP routes mapped
[29/11/2019 20:09:01]
[29/11/2019 20:09:01] Host initialized (760ms)
[29/11/2019 20:09:01] Host started (821ms)
[29/11/2019 20:09:01] Job host started
Hosting environment: Production
Content root path: D:\Epiq\Code\functions\blob_trigger_add
Now listening on: http://0.0.0.0:7071
Application started. Press Ctrl+C to shut down.
[29/11/2019 20:09:02] An unhandled exception has occurred. Host is shutting down.
[29/11/2019 20:09:02] System.Private.CoreLib: The given key 'LogType' was not present in the dictionary.
[29/11/2019 20:09:02] Stopping host...
[29/11/2019 20:09:02] Stopping JobHost
[29/11/2019 20:09:02] Job host stopped
[29/11/2019 20:09:02] Host shutdown completed.
Application is shutting down...

Terminal will be reused by tasks, press any key to close it.

知道如何解决这个问题吗？

Answer 1

在 host.json 文件中更改此内容:

{
   "version": "2.0",
   "extensionBundle": {
     "id": "Microsoft.Azure.Functions.ExtensionBundle",
     "version": "[1.*, 2.0.0)"
   }
}

对此:

{
   "version": "2.0",
}

它对我有用，也许对你也有用。或者您是否设法通过其他方式解决这个问题？