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c51 error

hi. i'm study to infineon xc800 series 8051 and using debugger dap miniwiggler

but i do not enter to debug mode

this is error message
---------------------------------------------------------------------------------------------
Searching for DAS Server 'UDAS'...
DAS Server 'UDAS' is installed.
DAS Server 'UDAS' is already started.
Warning: Unknown JTAG ID while checking the flash size! Continuing with standard 16KB flash settings
Warning: No Flash sector found for address 0x7FFC
Erasing Bank 0 Sectors: 0, 1, 2
Erase Failed!
DAS port is in wrong state
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i using keil c51 and default setting and UDAS DAS server.

i need your help plz