import wxWidgets-2.6.2\build\msw\wx.dsw, then compil Win32 Release.  
1. wx_base first, well.
2. wx_core, error as below:
Project   : wx_core 
Compiler  : Microsoft Visual C++ Toolkit 2003 (called directly) 
Directory : D:\wxWidgets-2.6.2\build\msw\ 
-------------------------------------------------------------------------------- 
Switching to target: Win32 Release 
accesscmn.cpp 
appcmn.cpp 
artprov.cpp 
artstd.cpp 
bmpbase.cpp 
bookctrl.cpp 
choiccmn.cpp 
clipcmn.cpp 
cmdproc.cpp 
cmndata.cpp 
containr.cpp 
cshelp.cpp 
ctrlcmn.cpp 
ctrlsub.cpp 
datacmn.cpp 
dcbase.cpp 
dlgcmn.cpp 
dndcmn.cpp 
dobjcmn.cpp 
docmdi.cpp 
docview.cpp 
dpycmn.cpp 
dseldlg.cpp 
effects.cpp 
event.cpp 
fddlgcmn.cpp 
fldlgcmn.cpp 
fontcmn.cpp 
fontmap.cpp 
framecmn.cpp 
fs_mem.cpp 
gaugecmn.cpp 
gbsizer.cpp 
gdicmn.cpp 
geometry.cpp 
gifdecod.cpp 
helpbase.cpp 
iconbndl.cpp 
imagall.cpp 
imagbmp.cpp 
image.cpp 
imagfill.cpp 
imaggif.cpp 
imagiff.cpp 
imagjpeg.cpp 
imagpcx.cpp 
imagpng.cpp 
imagpnm.cpp 
imagtiff.cpp 
imagxpm.cpp 
layout.cpp 
lboxcmn.cpp 
matrix.cpp 
menucmn.cpp 
msgout.cpp 
nbkbase.cpp 
paper.cpp 
popupcmn.cpp 
prntbase.cpp 
quantize.cpp 
radiocmn.cpp 
rendcmn.cpp 
rgncmn.cpp 
settcmn.cpp 
sizer.cpp 
statbar.cpp 
stockitem.cpp 
tbarbase.cpp 
textcmn.cpp 
timercmn.cpp 
toplvcmn.cpp 
treebase.cpp 
utilscmn.cpp 
valgen.cpp 
validate.cpp 
valtext.cpp 
wincmn.cpp 
xpmdecod.cpp 
accel.cpp 
..\..\src\generic\accel.cpp(89) : error C2084: function 'wxAcceleratorTable::wxAcceleratorTable(void)' already has a body 
        ..\..\include\wx\msw\accel.h(27) : see previous definition of '__ctor' 
..\..\src\generic\accel.cpp(109) : error C2084: function 'wxAcceleratorTable::~wxAcceleratorTable(void)' already has a body 
        ..\..\include\wx\msw\accel.h(58) : see previous definition of '__dtor' 
..\..\src\generic\accel.cpp(121) : error C2039: 'Add' : is not a member of 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(123) : error C3861: 'AllocExclusive': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(125) : error C2065: 'm_refData' : undeclared identifier 
..\..\src\generic\accel.cpp(127) : error C3861: 'm_refData': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(130) : error C2227: left of '->m_accels' must point to class/struct/union 
        type is ''unknown-type'' 
..\..\src\generic\accel.cpp(130) : error C2228: left of '.Append' must have class/struct/union type 
..\..\src\generic\accel.cpp(130) : error C3861: 'm_refData': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(133) : error C2039: 'Remove' : is not a member of 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(135) : error C3861: 'AllocExclusive': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(137) : error C2227: left of '->m_accels' must point to class/struct/union 
        type is ''unknown-type'' 
..\..\src\generic\accel.cpp(137) : error C2228: left of '.GetFirst' must have class/struct/union type 
..\..\src\generic\accel.cpp(137) : error C3861: 'm_refData': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(149) : error C2227: left of '->m_accels' must point to class/struct/union 
        type is ''unknown-type'' 
..\..\src\generic\accel.cpp(149) : error C2228: left of '.Erase' must have class/struct/union type 
..\..\src\generic\accel.cpp(149) : error C3861: 'm_refData': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(165) : error C2039: 'GetEntry' : is not a member of 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(166) : error C2270: 'GetEntry' : modifiers not allowed on nonmember functions 
..\..\src\generic\accel.cpp(167) : error C3861: 'Ok': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(173) : error C2227: left of '->m_accels' must point to class/struct/union 
        type is ''unknown-type'' 
..\..\src\generic\accel.cpp(173) : error C2228: left of '.GetFirst' must have class/struct/union type 
..\..\src\generic\accel.cpp(173) : error C3861: 'm_refData': identifier not found, even with argument-dependent lookup 
..\..\src\generic\accel.cpp(198) : error C2039: 'GetMenuItem' : is not a member of 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(199) : error C2270: 'GetMenuItem' : modifiers not allowed on nonmember functions 
..\..\src\generic\accel.cpp(205) : error C2039: 'GetCommand' : is not a member of 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(206) : error C2270: 'GetCommand' : modifiers not allowed on nonmember functions 
..\..\src\generic\accel.cpp(213) : error C2509: 'CreateRefData' : member function not declared in 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
..\..\src\generic\accel.cpp(218) : error C2509: 'CloneRefData' : member function not declared in 'wxAcceleratorTable' 
        ..\..\include\wx\msw\accel.h(23) : see declaration of 'wxAcceleratorTable' 
Process terminated with status 1 (3 minutes, 40 seconds) 
29 errors, 0 warnings 
when I delete files in folder ''generic'' and ''univ'', it is OK:
Project   : wx_core
Compiler  : Microsoft Visual C++ Toolkit 2003 (called directly)
Directory : D:\wxWidgets-2.6.2\build\msw\
--------------------------------------------------------------------------------
Switching to target: Win32 Release
Linking static library: D:\wxWidgets-2.6.2\lib\vc_lib\wxmsw26_core.lib
version.res : warning LNK4221: no public symbols found; archive member will be inaccessible
Process terminated with status 0 (0 minutes, 7 seconds)
0 errors, 1 warnings
 
Is it a bug in C::B import *.dsp file?
by the way,delete file one by one, very boring.   If can delete entry folder will nice.