Change8
Error1 reports

Fix TypeError

in Cypress

Solution

This "TypeError: _.map is not a function" in Cypress often occurs when a Cypress configuration file (cypress.config.js/ts) or a plugin file is attempting to use the Lodash `map` function on a variable that is not an array (e.g., it's undefined, a single value, or an object). Ensure the variable you are trying to map over is indeed an array; if it's coming from a configuration property, verify that the property is correctly defined and returning an array. You may need to initialize the variable or handle cases where it might be undefined or not an array before attempting to map over it.

Timeline

First reported:Jan 7, 2026
Last reported:Jan 7, 2026

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