Firebase Unity SDK无法找到所需的命令行工具python，该工具用于生成Firebase Android资源。

Question

Firebase Unity SDK无法找到所需的命令行工具python，该工具用于生成Firebase Android资源。

9

当我使用Firebase SDK 8.7.0打开Unity时，会出现以下错误。

Unable to find command line tool python required for Firebase Android resource generation.
python is required to generate the Firebase Android resource file google-services.xml from Assets/Firebase/GoogleService-Info.plist. Without Firebase Android resources, your app will fail to initialize.
python was distributed with each Firebase Unity SDK plugin, was it deleted?

System.ComponentModel.Win32Exception (0x80004005): ApplicationName='python', CommandLine='"/Users/xxx/Documents/unity-project/Assets/Firebase/Editor/generate_xml_from_google_services_json.py" -i "Assets/Firebase/GoogleService-Info.plist" -l --plist', CurrentDirectory='/Users/xxx/Documents/unity-project', Native error= mono-io-layer-error (2)
  at System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) [0x002dc] in <0463b2ef957545c0a51b42f372cd4fbb>:0 
  at System.Diagnostics.Process.Start () [0x0003a] in <0463b2ef957545c0a51b42f372cd4fbb>:0 
  at (wrapper remoting-invoke-with-check) System.Diagnostics.Process.Start()
  at GooglePlayServices.CommandLine.RunViaShell (System.String toolPath, System.String arguments, System.String workingDirectory, System.Collections.Generic.Dictionary`2[TKey,TValue] envVars, GooglePlayServices.CommandLine+IOHandler ioHandler, System.Boolean useShellExecution, System.Boolean stdoutRedirectionInShellMode) [0x002dc] in Z:\tmp\tmp.cvthQg1D2s\third_party\unity\unity_jar_resolver\source\AndroidResolver\src\CommandLine.cs:631 
  at GooglePlayServices.CommandLine.Run (System.String toolPath, System.String arguments, System.String workingDirectory, System.Collections.Generic.Dictionary`2[TKey,TValue] envVars, GooglePlayServices.CommandLine+IOHandler ioHandler) [0x00000] in Z:\tmp\tmp.cvthQg1D2s\third_party\unity\unity_jar_resolver\source\AndroidResolver\src\CommandLine.cs:510 
  at Firebase.Editor.PythonExecutor.Run (System.Collections.Generic.IEnumerable`1[T] arguments, System.String workingDirectory, System.Collections.Generic.Dictionary`2[TKey,TValue] envVars, GooglePlayServices.CommandLine+IOHandler ioHandler) [0x00000] in Z:\tmp\tmp.dYyxJerQE9\firebase\app\client\unity\editor\src\PythonExecutor.cs:180 
  at Firebase.Editor.GenerateXmlFromGoogleServicesJson.RunResourceGenerator (System.Collections.Generic.IEnumerable`1[T] arguments, System.String inputPath, System.Boolean showCommandLine) [0x0001b] in Z:\tmp\tmp.dYyxJerQE9\firebase\app\client\unity\editor\src\GenerateXmlFromGoogleServicesJson.cs:521 
 #0 GetStacktrace(int)
 #1 DebugStringToFile(DebugStringToFileData const&)
 #2 DebugLogHandler_CUSTOM_Internal_Log(LogType, LogOption, ScriptingBackendNativeStringPtrOpaque*, ScriptingBackendNativeObjectPtrOpaque*)
 #3  (Mono JIT Code) (wrapper managed-to-native) UnityEngine.DebugLogHandler:Internal_Log (UnityEngine.LogType,UnityEngine.LogOption,string,UnityEngine.Object)
 #4  (Mono JIT Code) [Z:\tmp\tmp.dYyxJerQE9\firebase\app\client\unity\editor\src\GenerateXmlFromGoogleServicesJson.cs:407] Firebase.Editor.GenerateXmlFromGoogleServicesJson:ReadBundleIds (string)

我尝试在shell中运行python "/Users/xxx/Documents/unity-project/Assets/Firebase/Editor/generate_xml_from_google_services_json.py" -i "Assets/Firebase/GoogleService-Info.plist" -l --plist，它成功输出了我的应用程序的捆绑标识符com.myapp.bundle

我还尝试重新导入Firebase SDK、重启Unity和Mac，但它们都没有解决问题。

我搜索了类似的问题，但不幸的是没有找到解决方案。

在这个错误出现之前，我做了一些事情：我升级了macOS到最新的Monterey 12.3。不确定是否有关联。

我会感激任何帮助。我已经在这上面花了整整一天了，非常绝望。

- etleoking

请澄清您的具体问题或提供额外的细节，以准确突出您所需的内容。目前的描述不够清晰，很难确定您在询问什么。 - Community

2个回答

3

一个更新：

如果你正在升级到最新的Unity 2021 LTS，在某些情况下（在这个帖子中提到：https://github.com/firebase/quickstart-unity/issues/1228#issuecomment-1098892025），可能会抑制python错误并在编辑器中收到以下无法清除的错误。

Internal build system error. Backend exited with code 2.

如果你遇到这个错误，你需要使用这个第三方修复补丁：https://github.com/techyworm10/firebase-unity-sdk-editor-python-fix。

这个方法解决了我的问题。

- etleoking

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- Dustin Kerstein · Accepted Answer

由于MacOS 12.3移除了Python2，所以出现了这个问题。很遗憾，目前我没有任何解决方法。我尝试将Python3符号链接到/usr/local/bin（请确保它在您的路径上），在终端中可以正常工作，但是出于某种原因，Unity/Firebase仍然无法访问它。我还尝试进入恢复模式并禁用SIP，但由于 Monterey（和Big Sur）中现在已经是只读文件，所以你仍然不能将其符号链接到/usr/bin。我已经向此问题添加了一些注释 - https://github.com/firebase/firebase-unity-sdk/issues/154，并且可能还会在Unity论坛/错误跟踪器上发布，因为我不确定问题是否出现在Firebase SDK中还是Unity本身中。