Command Build & Flash fail in monitor (IDFGH-6805)

[HiFiPhile]

Environment

• Development Kit: [ESP32-C3-DevKitM-1]
• Kit version (for WroverKit/PicoKit/DevKitC): [v1]
• IDF version (run git describe --tags to find it):
  v5.0-dev-1599-gb66cc63c41
• Build System: [df.py]
• Compiler version (run xtensa-esp32-elf-gcc --version to find it):
  (crosstool-NG esp-2021r2-patch2) 8.4.0
• Operating System: [Windows]
• (Windows only) environment type: [ESP Command Prompt].
• Using an IDE?: [No]
• Power Supply: [USB]

Problem Description

Both idf.py -p COM7 monitor and idf.py -p COM7 flash can be run succesfully.

Launch idf.py -p COM7 monitor, command Ctrl+F Build & flash project fail in monitor.

Running C:\Tool\esp-idf\python_env\idf5.0_py3.9_env\Scripts\python.exe E:\mcu\esp-idf\tools\idf.py -p COM7 flash...
Option "port" provided for "flash" is already defined to a different value. This option can appear at most once in the command line.
--- Build failed
--- Press Ctrl+] to exit monitor.
--- Press Ctrl+F to build & flash project.
--- Press Ctrl+A to build & flash app.
--- Press any other key to resume monitor (resets target).

Then I modified idf.py to print the value:

 if global_value != default and local_value != default and global_value != local_value:
                            raise FatalError(
                                'Option "%s" provided for "%s" is already defined to a different value. '
                                'Local : %s ; Global : %s '
                                'This option can appear at most once in the command line.' % (key, task.name, local_value, global_value))

Which get :

Option "port" provided for "flash" is already defined to a different value. Local : \\.\COM7 ; Global : COM7 This option can appear at most once in the command line.

Turns out \\.\ is not correctly handled inside the script.

[dobairoland]

Thank you @HiFiPhile reporting this. We will fix this soon.