idf.py fails if project and IDF paths are on different drives on Windows computer (IDFGH-478)

[j-e-f-f-williams]

Environment

• Development Kit: ESP32-WROOM32 board (unknown vendor)

• Module or chip used: ESP32-WROOM-32

• IDF version (run git describe --tags to find it): v3.3-dev-97-gfc1995437

• Build System: CMake

• Compiler version (run xtensa-esp32-elf-gcc --version to find it): xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0

• Operating System: Windows 10

• Power Supply: USB

Problem Description

• IDF location C:\dev\esp-idf
• env variable setup correctly and can compile Hello World on example on C:
• project location D:\projects\TrackDAQ
• idf.py build completes with error

Expected Behavior

• no errors

Actual Behavior

following python error:

Project build complete. To flash, run this command:
Traceback (most recent call last):
File "C:\dev\esp-idf\tools\idf.py", line 523, in
main()
File "C:\dev\esp-idf\tools\idf.py", line 519, in main
print_closing_message(args)
File "C:\dev\esp-idf\tools\idf.py", line 371, in print_closing_message
print_flashing_message("Project", "project")
File "C:\dev\esp-idf\tools\idf.py", line 364, in print_flashing_message
os.path.relpath("%s/components/esptool_py/esptool/esptool.py" % os.environ["IDF_PATH"]),
File "C:\Python27\lib\ntpath.py", line 529, in relpath
% (path_prefix, start_prefix))
ValueError: path is on drive C:, start on drive d:

Steps to repropduce

1. install IDF and IDF tools on C:
2. copy esp-idf\examples\get-started\hello_world to directory on D:
3. execute 'idf.py build' in D: based hellow_world example directory
4. wait for message

Code to reproduce this issue

No code - build issue

Debug Logs

[41/43] Linking C static library bootloader_support\libbootloader_support.a
[42/43] Linking C executable bootloader.elf
[43/43] Generating bootloader.bin
esptool.py v2.6-beta1
[734/734] Generating hello-world.bin
esptool.py v2.6-beta1

Project build complete. To flash, run this command:
Traceback (most recent call last):
File "C:\dev\esp-idf\tools\idf.py", line 523, in
main()
File "C:\dev\esp-idf\tools\idf.py", line 519, in main
print_closing_message(args)
File "C:\dev\esp-idf\tools\idf.py", line 371, in print_closing_message
print_flashing_message("Project", "project")
File "C:\dev\esp-idf\tools\idf.py", line 364, in print_flashing_message
os.path.relpath("%s/components/esptool_py/esptool/esptool.py" % os.environ["IDF_PATH"]),
File "C:\Python27\lib\ntpath.py", line 529, in relpath
% (path_prefix, start_prefix))
ValueError: path is on drive C:, start on drive d:

Other items if possible

[projectgus]

Hi @j-e-f-f-williams ,

Thanks for being patient while someone got back to you about this. A fix has been merged for this issue and should be pushed to GitHub soon.

Angus