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Sorry I don't have access to the Create It With LiveCode lessons so I'm not sure what you have got here.

The error message you have now, seems to indicate that the contents of pControl are not correct to resolve to a datagrid object on which to set the highlight. Where is the value of pControl set ...

So, I remade the datagrid. However, I'm getting a different error.
Error in object expression

put the lockMessages into msgsAreLocked
unlock messages
set the dgHilite of pControl to pBoolean
set the lockMessages to msgsAreLocked
end _HiliteControl


That's the code the error finder takes me ...

OK, let me give that a shot. The data grid addition is on lesson 4 of Hello World (the first app) in Build it With LiveCode. Most of it has already been designed. I really don't want to start with a new stack because of all of the design work I've already put in. I'll delete data grid and start that ...

Hey guys and girls.
I'm relatively new to coding and I'm still wrapping my head around this so I apologize in advance if this is a stupid or simple question, but here goes:

I'm coding the Hello World application and I receive an error message. In particular it states:

An error has occurred in ...