F2092 Program or unit '%s' recursively uses itself (Delphi)
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An attempt has been made for a unit to use itself.
unit Produce; interface uses Produce; implementation begin end.
In the above example, the uses clause specifies the same unit, which causes the compiler to emit an error message.
unit Solve; interface implementation begin end.
The only solution to this problem is to remove the offending uses clause.