request is not defined

This error typically occurs in programming languages like JavaScript when you try to use a variable or function that has not been defined or declared.

For example, if you try to use the variable "request" in your code without first defining it, you will see the error message "request is not defined."

To fix this error, you need to make sure that all the variables and functions you use in your code are properly defined and declared before you try to use them.