[Lazarus] Error compile Lazarus (trunk) in Windows7

[Junior]

Free Pascal Compiler version 2.7.1 [2013/04/27] for i386
Copyright (c) 1993-2013 by Florian Klaempfl and others
Target OS: Win32 for i386
Compiling fcllaz.pas
Fatal: Can't find unit system used by fcllaz
Fatal: Compilation aborted
make[1]: *** [fcllaz.ppu] Error 1
make[1]: Leaving directory `c:/freepascal/laz/packager/registration'
make: *** [registration] Error 2

c:\freepascal\laz>

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