Thanks for this link ! 
Acocrding to Antony, my problem is :
This message may come up when your installation file (.sis/.sisx) copies files to other application's private folder, i.e. privateuid. Note that Symbian 9 introduces data caging concept, it means you don't have access to other application's private folder.
My mistake were in .pkg file in backup_registration location : I forget to change UID..
Code:
; Installation file for GNU Http tunnel application
;
; This is an auto-generated PKG file by Carbide.
; This file uses variables specific to Carbide builds that will not work
; on command-line builds. If you want to use this generated PKG file from the
; command-line tools you will need to modify the variables with the appropriate
; values: $(EPOCROOT), $(PLATFORM), $(TARGET)
;
;Language - standard language definitions
&EN
; standard SIS file header
#{"GNU HTTP Tunnel Client"},(0xA0007795),1,0,0
;Localised Vendor name
%{"Vendor-EN"}
;Unique Vendor name
:"Vendor"
; pips_s60_wp.sis is required
(0x20009A80), 0, 0, 0, {"OpenCRuntime"}
; openc_glib.sis is required
(0x10281F2C), 0, 0, 0, {"GlibRuntime"}
;Supports Series 60 v 3.0
[0x101F7961], 0, 0, 0, {"Series60ProductID"}
;Files to install
;"C:\Symbian\9.2\S60_3rd_FP1_2\Epoc32\release\gcce\urel\htc60.exe" -"!:\sys\bin\htc60.exe"
"$(EPOCROOT)Epoc32\release\$(PLATFORM)\$(TARGET)\htc60.exe" -"!:\sys\bin\htc60.exe"
;text continue
"notice.txt" -"",FT,TC
;required for application to be covered by backup/restore facility
"backup_registration.xml" -"!:\private\E12E55B4\backup_registration.xml"
THANKS !