ML.NET：在 IIS 上发布后“调用目标已引发异常”

创建并训练图像分类模型。然后我根据指南将其添加到我的 ASP.NET Web API 中。在本地运行时一切正常。该模型对图像进行分类。但是发布到IIS后，出现错误：

“调用目标已引发异常”

如果从 model 中删除延迟初始化PredictionEngine，则只会记录未处理的异常：

“连接 ID“18014398514582257719”，请求 ID“40000039-0001-fa00-b63f-84710c7967bb”：应用程序引发了未处理的异常。”

public partial class Model
{
    private readonly MLContext context = new();


    private ITransformer? model;


    private readonly string filePath;



    public Model(string filePath)
    {
        this.filePath = filePath;
        predictionEngine = new(CreatePredictionEngine, LazyThreadSafetyMode.ExecutionAndPublication);
    }


    
    public Model(PredictionEnginePool<WineImageData, WineImagePrediction> predictionEnginePool, IOptions<ModelConfiguration> options)
    {
        filePath = options.Value.FilePath;
        predictionEngine = new(() => predictionEnginePool.GetPredictionEngine(options.Value.ModelName), LazyThreadSafetyMode.ExecutionAndPublication);
    }
}

添加到 DI 容器：

public static class Extensions
{
    public static IServiceCollection AddWineImageModel(this IServiceCollection services, string modelName, string filePath)
    {
        _ = services.AddPredictionEnginePool<WineImageData, WineImagePrediction>().FromFile(modelName, filePath, true);

        _ = services.AddSingleton<ITrainingModel, Model.Model>();
        _ = services.AddSingleton<IConsumptionModel, Model.Model>();

        return services.Configure<ModelConfiguration>(config =>
        {
            config.ModelName = modelName;
            config.FilePath = filePath;
        });
    }
}

变化#1

导致问题的异常System.DllNotFoundException是：

“无法加载 DLL“tensorflow”或其依赖项之一：找不到指定的模块。(0x8007007E)”