The compiler was unable to locate the specified identifier; it was most likely misspelt at the time of declaration or use. It could be from a different unit that doesn’t have a uses clause.
program Produce; var Counter: Integer; begin Count := 0; Inc(Count); Writeln(Count); end.
The variable was declared as “Counter” but was used as “Count” in the example. Either update the declaration or the places where the variable is utilised as a solution.
program Solve; var Count: Integer; begin Count := 0; Inc(Count); Writeln(Count); end.
We changed the declaration in the example because it was less work.