在STM32CubeIDE v1.3.0中使用JLink调试器出错是何原因呢

我看到 STM32CubeIDE v1.3.0 的发布文档说支持使用 JLink 调试器。所以我尝试在我的电脑上使用 JLink 和 STM32CubeIDE v1.3.0（操作系统是 Debian 9）。但是我看到控制台有一些错误。它显示无法检测到 MPU 内核。下面是调试信息

• SEGGER J-Link GDB Server V6.62 Command Line Version
• JLinkARM.dll V6.62 (DLL compiled Jan 24 2020 16:34:42)
• Command line: -port 2331 -s -device STM32MP157CACx -endian little -speed 4000 -vd
• -----GDB Server start settings-----
• GDBInit file:                  none
• GDB Server Listening port:     2331
• SWO raw output listening port: 2332
• Terminal I/O port:             2333
• Accept remote connection:      yes
• Generate logfile:              off
• Verify download:               on
• Init regs on start:            off
• Silent mode:                   off
• Single run mode:               on
• Target connection timeout:     0 ms
• ------J-Link related settings------
• J-Link Host interface:         USB
• J-Link script:                 none
• J-Link settings file:          none
• ------Target related settings------
• Target device:                 STM32MP157CACx
• Target interface:              JTAG
• Target interface speed:        4000kHz
• Target endian:                 little
• Connecting to J-Link...
• J-Link is connected.
• Failed to set device (STM32MP157CACx). Unknown device selected?ERROR : Failed to set device.
• Firmware: J-Link V9 compiled Dec 13 2019 11:14:50
• Hardware: V9.60
• S/N: 55623165
• Feature(s): GDB, RDI, FlashBP, FlashDL, JFlash, RDDI
• Checking target voltage...
• Target voltage: 3.39 V
• Listening on TCP/IP port 2331
• Connecting to target...
• ERROR: No CPU core or target device has been selected. Please make sure at least the core J-Link shall connect to, is selected.
• ERROR: Could not connect to target.
• Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...
• Shutting down...
• Could not connect to target.
• Please check power, connection and settings.