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ERROR MESSAGES

Error Messages

When using Rel and the RKGS, the output may return an error message, indicating that there’s an error in the code you’ve entered. This section contains guides explaining what errors you may experience, including all the related information you need to handle them.

List of Error Messages

Each of the following guides presents a specific problem within the RAI system, covering examples and solutions:

Overview

Overview

Presents the most common RelationalAI system errors.

Loading Errors

DATA LOAD

Describes data loading errors.

DATA LOAD CONFIG

Describes data loading configuration errors.

Exception Errors

EXCEPTION

Describes execution errors.

EXCEPTION - Ungrounded Variable

Explains errors resulting from a variable that has not been correctly instantiated.

Integrity Constraints Errors

IC VIOLATION

Describes integrity constraint violations.

NON FORMULA IC BODY

Explains errors resulting from an integrity constraint that is not well defined.

Parse Errors

PARSE PROBLEM

Presents Rel syntax errors.

PARSE PROBLEM - Reserved Keyword

Describes reserved keyword errors.

Variable Errors

SHADOWED VARIABLE

Presents errors resulting from having the same names for different variables.

UNTYPED VARIABLE

Presents errors resulting from having a variable type that cannot be inferred.

UNDEFINED

Presents errors resulting from a variable that has not been correctly defined.

VARARGS

Presents errors occurring when the arity of the vararg argument is not well defined.

Others

ARITY MISMATCH

Describes arity mismatch errors.

BASE DERIVED OVERLOAD

Describes the overloading error for base and derived relations.

COMPARISON CHAIN

Describes comparison chain errors.

UNDOCUMENTED ERRORS

Describes undocumented errors and how to work around them.
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