error in pkj file

hello,
i have a problem when i build my project.i have a error in the pkj file.
the pkj file:
(line25)"$(EPOCROOT)epoc32\release\$(PLATFORM)\$(TARGET)\gprs.app"-"!:\system\apps\gprs\gprs.app" ((line 25))
(line26)"$(EPOCROOT)epoc32\data\z\system\apps\gprs\gprs.rsc"-"!:\system\apps\gprs\gprs.rsc"
(line27)"$(EPOCROOT)epoc32\data\z\system\apps\gprs\gprs_caption.rsc"-"!:\system\apps\gprs\gprs_caption.rsc"
(line28)"$(EPOCROOT)epoc32\data\z\system\apps\gprs\gprs.aif"-"!:\system\apps\gprs\gprs.aif"
(line29)"..\help\gprs.hlp "-"!:\system\help\gprs.hlp"

error:
(1)file not found gprs/sis gprs_S60_2_X_v_1_0_0.pkg line 25 1216800921093 1799
(2)make[1]:***No rule to make target '\Sy gprs (line0)
(3)makesis.exe returned with exit value=1 gprs (unknown)
Warning:
Can't find following headers in gprs (unknown)
Please help me
thanks.