Not a Valid **** Error

If you try to compile a script, that references an item, tag location, camera point, etc. that does not exist in the scenario (or, tag folder for tag location), it will give you this error.

Simply correct it by placing an item of that type in the scenario, correct the script, etc.

If you get an issue about a script not being valid, yet it exists in your hsc, please check the ordering of your HSC. Before a script can be referenced, it has to be compiled. Reorder your hsc file so that things such as global, dormant, static, and stub, are above where they are first called from, like the top of the script. Stub scripts exist to help with this sort of issue, for Static scripts.