#error

InstallShield 2022 » InstallScript Language Reference

Use the #error directive to abort compilation and display a user-defined error message. The message to display must be entered immediately after #error and be separated from the directive by at least one space.

In the example below, the constant PRODUCTID must equal 1 or 2. If the value of PRODUCTID is not within that range, the constant PRODUCTNAME is not defined and a user-defined error message is displayed.

#define PRODUCTID 1

 

#if (PRODUCTID = 1)

   #define PRODUCTNAME "Lite"

#elif (PRODUCTID = 2)

   #define PRODUCTNAME "Professional"

#endif

 

#ifndef PRODUCTNAME

   #error PRODUCTID out of range.

#endif