表单识别器 "Training data is missing: Could not find any training data at the given path."

Question

我正在使用新的表单识别器工作室 (https://formrecognizer.appliedai.azure.com/studio/customform/projects) 来标记使用 SDK Version="4.0.0-beta.2" 的文件。训练模型的代码如下：

                var buildModelOptions = new BuildModelOptions
                {
                    Prefix = docType.SubFolderName,
                    ModelDescription = trainedModel.ModelDescription
                };
                BuildModelOperation operation = await _trainingClient
                    .StartBuildModelAsync(new Uri(_trainingDataSASUrl), trainedModel.ModelName, buildModelOptions);
                Response<DocumentModel> operationResponse = await operation.WaitForCompletionAsync();
                DocumentModel model = operationResponse.Value;

在方法 StartBuildModelAsync() 上不断出现如下错误：

Invalid request.
Status: 400 (Bad Request)
ErrorCode: InvalidRequest

Content:
{
  "error": {
    "code": "InvalidRequest",
    "message": "Invalid request.",
    "innererror": {
      "code": "TrainingContentMissing",
      "message": "Training data is missing: Could not find any training data at the given path."
    }
  }
}

在 BuildModelOptions.Prefix 中，我将值传递为“cfs/Lease1015”，这是来自 blob 容器的路径，blob 容器 SAS url 在“_trainingDataSASUrl”中。在 blob 中，训练文件存在于“cfs/Lease1015”下，并且在正确的大小写中指定了前缀。

Answer 1

请查看 github 此处报告的错误 https://github.com/Azure/azure-sdk-for-net/issues/26081 了解更多信息。

在前缀属性中添加“/”后有效。

var buildModelOptions = new BuildModelOptions
{
    Prefix = docType.SubFolderName + '/', // append a slash to the subfolder name
    ModelDescription = trainedModel.ModelDescription
};

表单识别器 "Training data is missing: Could not find any training data at the given path."

Form Recognizer "Training data is missing: Could not find any training data at the given path."

form-recognizer