使用Mounriver生成的默认工程CH32V103C8T6，官方的开发板，下载程序可以运行，打开串口能够收到信息。
在Mounriver的debug模式下，点击debug菜单，报错，不能进入调试代码状态，信息如下：
Open On-Chip Debugger 0.11.0+dev-02215-gcc0ecfb6d-dirty (2022-03-10-09:55)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
Ready for Remote Connections
Started by GNU MCU Eclipse
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : WCH-Link version 2.3
Info : wlink_init ok
Info : This adapter doesn't support configurable speed
Info : JTAG tap: riscv.cpu tap/device found: 0x00000001 (mfg: 0x000 (<invalid>), part: 0x0000, ver: 0x0)
Warn : Bypassing JTAG setup events due to errors
Info : [riscv.cpu.0] datacount=2 progbufsize=8
Info : Examined RISC-V core; found 1 harts
Info : hart 0: XLEN=32, misa=0x0
[riscv.cpu.0] Target successfully examined.
Info : starting gdb server for riscv.cpu.0 on 3333
Info : Listening on port 3333 for gdb connections
Info : accepting 'gdb' connection on tcp/3333
Info : device id = 0x37f4abcd
Info : flash size = 0kbytes
Warn : Prefer GDB command "target extended-remote :3333" instead of "target remote :3333"
Info : JTAG tap: riscv.cpu tap/device found: 0x00000001 (mfg: 0x000 (<invalid>), part: 0x0000, ver: 0x0)
Warn : Bypassing JTAG setup events due to errors
Mounriver软件和WCH-LINK 都是最新版本，请问可能是什么原因？我怎样才能够单步调试？
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