Cannot call XLPack VBA functions/subroutines

[Q] When I try to call an XLPack function or subroutine in a VBA program, I get a "Sub or Function is not defined" error and cannot call it.

[A] Please check if the reference settings are completed correctly. For details, please refer to Section 5 of User's Guide.

Even if the reference settings are correct, if you install only XLPack Basic and do not install XLPack Addons (additional functions), you will get the same error when trying to use the additional functions.