@Marvin ValueError: Unable to find block document named “” for block type s3:

It looks like the error message "ValueError: Unable to find block document named for block type s3" could be due to the block not being saved correctly or not existing with the given name. Here are some steps to troubleshoot and resolve this issue: 1. Ensure Block is Saved: Make sure that the block you are trying to use has been saved properly. You can save a block in Prefect by calling the

.save()

method on the block instance before referencing it. 2. Verify Block Name: Check that the name given to the block matches exactly with the one used when saving the block. Block names are case-sensitive and any mismatches can lead to this error. 3. Inspect S3 Block Example: Make sure that your code or block follows the structure similar to this example found in the Prefect documentation for S3 block:

from prefect.blocks.system import Secret
   from prefect_aws.credentials import AWSCredentials
   from prefect_aws.s3 import S3Bucket
   
   # Configure AWS credentials
   aws_credentials = AWSCredentials(
       aws_access_key_id="your_access_key",
       aws_secret_access_key="your_secret_key"
   )
   aws_credentials.save(name="my_aws_credentials")
   
   # Configure S3 bucket
   s3_bucket = S3Bucket(
       bucket_name="your_bucket_name",
       credentials=AWSCredentials.load(name="my_aws_credentials")
   )
   s3_bucket.save(name="my_s3_bucket")
   
   # Later retrieve the S3 block
   retrieved_s3_bucket = S3Bucket.load(name="my_s3_bucket")

For more details, you can refer to the Prefect documentation on Blocks. If these steps do not resolve your issue, creating a GitHub Issue in the Prefect repository for further assistance might be the next step.