Video 1.2: note on 3'32: "package UIOP does not exist"

[vindarel]

The first time you run the hello function that calls uiop:getenv, if you get an error that says that

package UIOP does not exist

we discuss this issue 2 minutes later at 5'30.

The fix is to "require" the :uiop (or :asdf) package, that is shipped with every implementation, but not always ready to use:

CL-USER>  (require :uiop)

Typically, you would add it to your ~/.sbclrc.

(At the minute 5'30, we use the --script flag, but this flag does NOT load our init files. It is safe to manually "require" :asdf or :uiop in your scripts).