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VBA · Errors & debugging
Compile errors
Mistakes caught before running, like a missing End If; Debug > Compile finds them all at once.
When to use it
Compile errors are mistakes the compiler catches before anything runs: a missing End If, a misspelled keyword, an undeclared variable under Option Explicit. Debug > Compile VBAProject finds all of them at once.
The code
- Code
Debug > Compile VBAProject
Worked examples
Compile everything
Debug > Compile VBAProject → Jumps to the first compile error in any module
Run it before every test.
Missing End If
If x > 0 Then y = 1 ' missing End If → "Block If without End If"
Structure errors.
Undeclared variable
totl = 5 ' with Option Explicit → "Variable not defined"
Typos caught.
Worth knowing
- A compile error in one procedure stops every macro in the module from running.
- Red lines in the editor are syntax errors caught as you type.
- Compile after pasting code from the web.
Where it goes wrong
- Missing references (Tools > References marked MISSING) cause compile errors far from the real cause.
- A "Can't find project or library" error usually means a broken reference.
Related
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