Forms Recognizer studio issue vs C# Code

Question

Hi

I have been using the new Forms Recognizer studio to label and train a custom forms model . All forms are multipage pdf documents. All is working fine within Forms Recogniser Studio however when I try to use the model in my C# code I am encountering issues.
Firstly the model ID is shown as bondTrackModel in forms studio
When I pass this as a parameter to
RecognizedFormCollection forms = await recognizerClient
.StartRecognizeCustomForms(modelId, image_data)
.WaitForCompletionAsync();
``with modelId="bondTrackModel" it throws a parameter exception because the model ID is not a guid. There is no way in Recognizer Studio to get the model guid from the friendly name.

I then tried to train the model myself in code. However when I call

            CustomFormModel model = await trainingClient
            .StartTrainingAsync(new Uri(trainingStorageUri), useTrainingLabels: true)
            .WaitForCompletionAsync();

It throws an exception Generic error during processing of OCR results for each each of the pdf documents I have in the container.

Any help or pointers appreciated.

Answer 1

Second issue I am having . I can train my model using the Forms Recogniser Studio but when I want to train my model in C# code using the label files I have made with Forms Recogniser Studio none of the training files are recognised .

Here is the code I am using
{
static async Task Main(string[] args)
{
try
{
// Get configuration settings
IConfigurationBuilder builder = new ConfigurationBuilder().AddJsonFile("appsettings.json");
IConfigurationRoot configuration = builder.Build();
string formEndpoint = configuration["FormEndpoint"];
string formKey = configuration["FormKey"];
string trainingStorageUri = configuration["StorageUri"];

            // Authenticate Form Training Client 
            var credential = new AzureKeyCredential(formKey);
            var trainingClient = new FormTrainingClient(new Uri(formEndpoint), credential);  

            // Train model 
            CustomFormModel model = await trainingClient
            .StartTrainingAsync(new Uri(trainingStorageUri), useTrainingLabels: true)
            .WaitForCompletionAsync();

            // Get model info
            Console.WriteLine($"Custom Model Info:");
            Console.WriteLine($"    Model Id: {model.ModelId}");
            //Console.WriteLine($"    Model Id: {model.ModelName}");
            Console.WriteLine($"    Model Status: {model.Status}");
            Console.WriteLine($"    Training model started on: {model.TrainingStartedOn}");
            Console.WriteLine($"    Training model completed on: {model.TrainingCompletedOn}");
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }  
    }
}

And the exception being thrown is :

Invalid model created with ID 7ff1fb0f-ba2c-41cb-b7c1-fe2aaf03cccb
Status: 200 (OK)
ErrorCode: 2102

Additional Information:
error-0: 2102: Only 0 valid input document(s) were found. Please provide at least 5 input documents. Generic error during processing of OCR results for BT-App V1.0-chrisg4.pdf Generic error during processing of OCR results for BT-App V1.0-chrisg2.pdf Generic error during processing of OCR results for BT-App V1.0-chrisg5.pdf Generic error during processing of OCR results for BT-App V1.0-chrisg3.pdf Generic error during processing of OCR results for BT-App V1.0-chrisg1.pdf

These are the same documents I have used to successful train my model with the Forms Recogniser Studio and made the label files with.

Answer 2

Ok first issue . I am using Forms recogniser Studio to train model. Under models it has only one model ID value "bondTrackModel" . The code I use to test is

            RecognizedFormCollection forms = await recognizerClient
            .StartRecognizeCustomForms(modelId, image_data)
            .WaitForCompletionAsync();

Where modelID="bondTrackModel" it throws error
"The modelId must be a valid GUID. (Parameter 'modelId')"
Previously I was using the old label making tool FOTT and there the model ID was shown as a GUID and it worked correctly. My problem is that the new Forms Recogniser Tool does not show model ID as GUIDs so the same call does not work with the model "friendly name"

Answer 3

Was the 'Generic error during processing of OCR results' issue resolved? I am experiencing the same thing. I tried to train a model but it stated 12/15 files I used had this error. They are carbon copies, structure-wise of the ones that did work. Any suggestions or guidance would be greatly appreciated:)