Azure 函數，“System.Private.CoreLib：值不能為 null。（參數‘path1’）。值不能為 null。（參數‘provider’）”

Question

我正在運行 Azure 功能/核心工具 3.x，在我的 Gradle（版本 4.6）Java（JDK 1.8）項目中，帶有 azure 功能應用程序。 我在 localhost:7071 的 api/devices 上有一個 GET 端點，我試圖訪問它，但我在運行azureFunctionsRun 時不斷出錯。

當我運行 azureFunctionsPackage 時，它似乎工作正常。 當我運行 azureFunctionsRun 時，我收到下面發布的錯誤。 當我曾經在 azure 核心工具 2.x 上時，我很高興使用命令“func start”，一切都完美無缺。 我有帶有樣板版本和 ExtensionBundles 腳本的 host.json 文件和帶有連接字符串的 local.settings.json 用於我的 Azure Web 作業存儲：

Azure Functions Core Tools found.
Starting running Azure Functions...
Executing command: cmd.exe /c cd /D C:\git\edge_bootstrap_ms\build\azurefunctions\edge-bootstrap-ms && func host start

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Azure Functions Core Tools (3.0.2106 Commit hash: 5431fca4f603bf9446d7dd2d5f96a43b5f69b5cb)
Function Runtime Version: 3.0.13107
[3/18/2020 8:56:57 PM] FUNCTIONS_WORKER_RUNTIME set to java. Skipping WorkerConfig for language:node
[3/18/2020 8:56:57 PM] FUNCTIONS_WORKER_RUNTIME set to java. Skipping WorkerConfig for language:powershell
[3/18/2020 8:56:57 PM] FUNCTIONS_WORKER_RUNTIME set to java. Skipping WorkerConfig for language:python
[3/18/2020 8:56:57 PM] Starting worker process:C:\Program Files\Java\jdk1.8.0_241\bin\java  -XX:+TieredCompilation -XX:TieredStopAtLevel=1 -noverify -Djava.net.preferIPv4Stack=true -jar "C:\Users\KBRV37\AppData\Roaming\npm\node_modules\azure-functions-core-tools\bin\workers\java\azure-functions-java-worker.jar" --host 127.0.0.1 --port 61509 --workerId 9ff09cf4-42d8-4e1a-b66e-8058754fe61a --requestId 123c617a-61e1-4b3a-98d8-13b6a5eff6c1 --grpcMaxMessageLength 134217728
[3/18/2020 8:56:57 PM] C:\Program Files\Java\jdk1.8.0_241\bin\java process with Id=10984 started
[3/18/2020 8:56:57 PM] [INFO] {Application.main}: Azure Functions Java Worker  version [ 1.5.2-SNAPSHOT]
[3/18/2020 8:56:58 PM] [INFO] {MessageHandler.handle}: Message generated by "StartStream.Builder"
[3/18/2020 8:56:59 PM] Building host: startup suppressed: 'False', configuration suppressed: 'False', startup operation id: '078289ce-7cd5-4f2f-924b-40696702867a'
[3/18/2020 8:56:59 PM] Reading host configuration file 'C:\git\edge_bootstrap_ms\build\azurefunctions\edge-bootstrap-ms\host.json'
[3/18/2020 8:56:59 PM] Host configuration file read:
[3/18/2020 8:56:59 PM] {
[3/18/2020 8:56:59 PM]   "version": "2.0",
[3/18/2020 8:56:59 PM]   "extensionBundle": {
[3/18/2020 8:56:59 PM]     "id": "Microsoft.Azure.Functions.ExtensionBundle",
[3/18/2020 8:56:59 PM]     "version": "[1.*, 2.0.0)"
[3/18/2020 8:56:59 PM]   }
[3/18/2020 8:56:59 PM] }
[3/18/2020 8:56:59 PM] Reading functions metadata
[3/18/2020 8:56:59 PM] 3 functions found
[3/18/2020 8:56:59 PM] Looking for extension bundle Microsoft.Azure.Functions.ExtensionBundle at (null)
[3/18/2020 8:56:59 PM] 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
[3/18/2020 8:56:59 PM] A host error has occurred during startup operation '078289ce-7cd5-4f2f-924b-40696702867a'.
[3/18/2020 8:56:59 PM] System.Private.CoreLib: Value cannot be null. (Parameter 'path1').
Value cannot be null. (Parameter 'provider')
Application is shutting down...
[3/18/2020 8:56:59 PM] Initialization cancellation requested by runtime.
[3/18/2020 8:56:59 PM] Shutting down language worker channels for runtime:java
[3/18/2020 8:56:59 PM] Stopping host...
[3/18/2020 8:56:59 PM] Host shutdown completed.
:azureFunctionsRun FAILED
1 actionable task: 1 executed

FAILURE: Build failed with an exception.

主機.json：

{
  "version": "2.0",
  "extensionBundle": {
    "id": "Microsoft.Azure.Functions.ExtensionBundle",
    "version": "[1.*, 3.0.0)"
  }
}

local.settings.json：

{
  "IsEncrypted": false,
  "Values": {
    "AzureWebJobsStorage": "DefaultEndpointsProtocol=https;AccountName=myAzureAccountName;AccountKey=myAzureAccountKeyString==",
    "FUNCTIONS_WORKER_RUNTIME": "java"
  }
}

Answer 1

我在 DI 服務的構造函數中使用的“local.setting.json”中缺少配置值。 通過添加這些值解決了我的問題。 希望你也是。

Answer 2

我能夠通過卸載 coretools 3.x 並重新安裝來解決這個問題。 或者就像我在這篇文章中所說的那樣，如果您很懶惰，可以單擊 azurefunctinosrun 失敗時顯示在控制台中的 extensionsbundle 鏈接，它會在您再次運行 azurefunctions 后立即工作。