Código Delphi
[-][dcc32 Error] ufmenu.pas(11): E2004 Identifier redeclared: 'Winapi.Windows'
[dcc32 Error] ufmenu.pas(12): E2004 Identifier redeclared: 'Winapi.Messages'
[dcc32 Error] ufmenu.pas(12): E2004 Identifier redeclared: 'System.SysUtils'
[dcc32 Error] ufmenu.pas(12): E2004 Identifier redeclared: 'System.Classes'
[dcc32 Error] ufmenu.pas(12): E2004 Identifier redeclared: 'Vcl.Graphics'
[dcc32 Error] ufmenu.pas(13): E2004 Identifier redeclared: 'Vcl.Controls'
[dcc32 Error] ufmenu.pas(13): E2004 Identifier redeclared: 'Vcl.Forms'
[dcc32 Error] ufmenu.pas(13): E2004 Identifier redeclared: 'Vcl.Dialogs'
Quita todas esas unidades duplicadas, con eso ya te compilará.
Código Delphi
[-][dcc32 Warning] dxCore.pas(241): W1050 WideChar reduced to byte char in set expressions. Consider using 'CharInSet' function in 'SysUtils' unit.
[dcc32 Warning] dxCore.pas(261): W1000 Symbol 'UTF8Decode' is deprecated: 'Use UTF8ToWideString or UTF8ToString'
[dcc32 Warning] dxCore.pas(294): W1058 Implicit string cast with potential data loss from 'string' to 'AnsiString'
[dcc32 Warning] dxCore.pas(299): W1057 Implicit string cast from 'AnsiString' to 'string'
[dcc32 Warning] dxCore.pas(318): W1058 Implicit string cast with potential data loss from 'string' to 'AnsiString'
[dcc32 Warning] dxCore.pas(323): W1000 Symbol 'UTF8Decode' is deprecated: 'Use UTF8ToWideString or UTF8ToString'
[dcc32 Warning] dxCore.pas(338): W1057 Implicit string cast from 'AnsiString' to 'string'
[dcc32 Warning] dxCore.pas(343): W1058 Implicit string cast with potential data loss from 'string' to 'AnsiString'
[dcc32 Warning] dxCore.pas(368): W1057 Implicit string cast from 'ShortString' to 'string'
[dcc32 Warning] dxCore.pas(373): W1058 Implicit string cast with potential data loss from 'string' to 'ShortString'
[dcc32 Warning] dxCore.pas(428): W1057 Implicit string cast from 'AnsiString' to 'string'
Referente a estos errores, estás utilizando una versión antigua de la unidad dxCore.pas, aunque no deberían detener la compilación sería bueno que actualizaras esos componentes también.
Saludos