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Debug ST-Link V2 Keil Online Studio failed

JoergSturm

When I try to debug with Keil Online Studio I get the following message:

Preparing to run
Parse debug description...
Create system description...
Connect to debug unit (ST-Link)...
Configure debug unit (SWD @ 10000000 Hz)...
Create device map...
Connect ('haltOnConnect') to device STM32L152RETx...
ERROR: Cannot open RDDI JTAG connection
ERROR: JTAG_Connect exited with code 13
ERROR: JTAG_TMS exited with code 48
ERROR: JTAG_TMS exited with code 48
: Atomic sequence error- failed to execute atomic sequence
DebugPortSetup
Item #2: <control if="protType == 2">
Item #0: <control if="isSWJ">
Item #1: <control if="!hasDormant">
RDDI-DSL ERROR: ERROR failed to connect to RDDI DAP target
RDDI Error Code 4107 : Connection to target failed.

Is debugging with Nucleo-L152re and ST Link V2 possible?

ST Link uses SWD.

Greetings Joerg Sturm