Can not able to deploy

unable to deploy

Hi Team
i tried to make deploy for the project but an error is showing as following

your form cannot be deployed because it contains errors:

ODK Validate Errors: >> Something broke the parser. See above for a hint. org.javarosa.xpath.XPathTypeMismatchException: XPath evaluation: type mismatch Expected XPath path, got XPath expression: [-1],null The following files failed validation: ${tmpiqcaod76} Result: Invalid

Please advice me

Welcome to the community, @Ahmedseif! Can you validate your XLSForm through this online validator? The online validator should help you identify syntax issues.