XLS Error when I try to deploy

Hi, I received this(below) error message when I tried to deploy my form.
How can I fix it?

your form cannot be deployed because it contains errors:

ODK Validate Errors: >> XForm is invalid. See above for the errors. : bind for ${How_many_ANC_1_sessi_A_conduct_this_week} contains invalid constraint expression [<= ${What_is_the_total_number_of_AN_001} ] Bad node: org.javarosa.xpath.parser.ast.ASTNodeAbstractExpr@6fd02e5 The following files failed validation: ${tmp6xjg5lqn} Result: Invalid

Hi @ekitistripe_1 and welcome to the community!

Can you use this tool to validate your form, it will give you your syntax issues so you can check them in your form.

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Error: ODK Validate Errors:

XForm is invalid. See above for the errors.
: bind for ${How_many_ANC_1_sessi_A_conduct_this_week} contains invalid constraint expression [<= ${What_is_the_total_number_of_AN_001} ] Bad node: org.javarosa.xpath.parser.ast.ASTNodeAbstractExpr@1b68ddbd

The following files failed validation:
${Abia} State CRISP SBAs Weekly electronic Reporting Logbook (eLB).xml

Result: Invalid

That’s the result I got after using the tool to validate my form.
How do I correct this error?

@ekitistripe_1, maybe you will need to check out the constraint that you have used for How_many_ANC_1_sessi_A_conduct_this_week variable (question).

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