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Template Rendering Error: No First Item

Template rendering error: No first item, sequence was empty

Description​

This error occurs when a Node's template expects a sequence or list with at least one item, but the sequence is empty. The issue is usually related to configuration problems within the Node.

Possible Causes​

  • Storage Location Issues - The first sequence in a Node's create template is empty due to incorrect or missing storage location configuration.
  • Missing Parameters - A required parameter was added in the Workspace but not configured in the Node.
  • Empty Configuration Values - A configuration field expects a value but none exists.
  • Incorrectly Structured Source Tables - The source table is empty or incorrectly configured.

Possible Solutions​

  • Check Recently Added Nodes - Focus on Nodes that were recently added or modified, since they are often the source of the error.
  • Verify Storage Locations - Ensure all storage locations are configured and mapped correctly.
  • Review Node Parameters - Confirm all required parameters are defined in both the Workspace and the target Environment.
  • Validate Source Configurations - Make sure source tables exist and contain the expected data structure.
  • Recreate Problem Nodes - If the error persists, delete and recreate the problematic Node.
  • Retry Deployment - In some cases, redeploying can resolve temporary template rendering issues.

Next Steps​

If errors continue after troubleshooting, create a support ticket. Include the full error message, deployment ID, and steps to reproduce the issue to help the support team investigate.