AUR0020

No defined value found when calling firstDefined()

Error message

No defined value found when calling firstDefined()

Parameters

None

Error explanation

This error occurs when the firstDefined() utility function is called with a list of values, but none of the values are defined (i.e., all are undefined). The function is intended to return the first non-undefined value, and throws this error if none is found.

Common causes

• All arguments passed to firstDefined() are undefined.

• There is a logic error in the code that generates the values for firstDefined().

• The function is used in a context where at least one value should always be defined, but none are.

How to fix

• Ensure that at least one argument passed to firstDefined() is defined (not undefined).

• Check the logic that produces the values for firstDefined() to ensure it is working as expected.

• Add appropriate fallbacks or default values if necessary.

Debugging tips

• Check the stack trace to see where firstDefined() was called.

• Inspect the values being passed to firstDefined() at the point of the error.

• Add logging or breakpoints to verify the expected values are present.