Cannot assign a value to a read-only variable 'variable name'.
This validation message applies to a variable.
Explanation
Resolution
An attempt is made to set the value of a configuration variable. The values of configuration variables cannot be changed at run time.
Perform one of the following tasks:
Use a different variable to store the run time value. (See Creating variables .)
Change the configuration variable to a process variable. (See Editing variables .)
