执行任何代码时，就会出现这种情况。
STMicroelectronics ST-LINK GDB server. Version 5.8.0
Copyright (c) 2020, STMicroelectronics. All rights reserved.
Starting server with the following options:
Persistent Mode : Disabled
Logging Level : 1
Listen Port Number : 61234
Status Refresh Delay : 15s
Verbose Mode : Disabled
SWD Debug : Enabled
Waiting for debugger connection...
Debugger connected
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STM32CubeProgrammer v2.7.0-RC1
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ST-LINK SN : 066DFF575251717867163205
ST-LINK FW : V2J37M26
Board : NUCLEO-L4R5ZI
Voltage : 3.26V
SWD freq : 4000 KHz
Connect mode: Under Reset
Reset mode : Hardware reset
Device ID : 0x470
Revision ID : Rev Y
Device name : STM32L4Rxxx/STM32L4Sxxx
Flash size : 63 KBytes (default)
Device type : MCU
Device CPU : Cortex-M4
Memory Programming ...
Opening and parsing file: ST-LINK_GDB_server_a21776.srec
File : ST-LINK_GDB_server_a21776.srec
Size : 8748 Bytes
Address : 0x08000000
Erasing memory corresponding to segment 0:
Erasing external memory sectors [0 2]
File segment @0x08000000 is not 255-bytes aligned. It will be aligned to @0x07FFFFF8
Download in Progress:
Error: failed to download Segment[0]
Error: failed to download the File
Encountered Error when opening E:\ST\STM32CubeIDE_1.6.0\STM32CubeIDE\plugins\com.st.stm32cube.ide.mcu.externaltools.cubeprogrammer.win32_1.6.0.202101291314\tools\bin\STM32_Programmer_CLI.exe
Error in STM32CubeProgrammer
Debugger connection lost.
Shutting down...
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