(ResourceNotReadyException):Error when calling DetectCustomLabels operation

Question

After **successfully** creating a **custom label model** on the **console**, I am trying to use the model for prediction as follows: from boto3 import client rekog = client('rekognition') response = rekog.detect_custom_labels(Image={'S3Object':{'Bucket':bucket, 'Name':key}}, ProjectVersionArn=project_version_arn) But I am getting the following Exception error:

An error occurred **(ResourceNotReadyException)** when calling the DetectCustomLabels operation: ProjectVersion arn:aws:rekognition: us-east-1:blah-blab-blal------ **is not ready** I thought the ProjectVersion should be ready once the the model is created with a defined and available **project_version_arn**. It is more **than one day** now and it still saying **not ready**. Is there anything I have to do to make the model **(project_version_arn)** ready?

Answer

Hi awsrakesh,  
Yes. That is what I am doing already. Thanks for the reminder.

Answer

I found solution to this problem. I just discovered that I commented out the following line in my code:  
  
start_project = rekog.start_project_version(ProjectVersionArn=project_version_arn, MinInferenceUnits=1)  
  
I uncommented it and it is working.  
  
The line above needs to be called after the training and it should be ensured that the model **Status** has changed to **RUNNING** before calling the **detect_custom_labels()** method.

Answer

rekoguser  
  
Yes that is the right approach.

Answer

Hello rekoguser  
  
Also please note that your billing will start once the model is in the RUNNING state.  
  
Once you are done, please use the StopProjectVersion API to bring the model to a STOPPED state.  
https://docs.aws.amazon.com/rekognition/latest/dg/API_StopProjectVersion.html  
  
This will also stop your billing for that project version.  
  
You can find more billing details here - https://aws.amazon.com/rekognition/pricing/ (section "Amazon Rekognition Custom Labels pricing").

(ResourceNotReadyException):Error when calling DetectCustomLabels operation

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