Unable to build project - Error : unable to load pigweed_environment.gni (CON-1229)

[Aryan-Tamboli]

Describe the bug
A clear and concise description of what the bug is.

Environment

• ESP-Matter Commit Id:
• ESP-IDF Commit Id:
• SoC (eg: ESP32 or ESP32-C3):
• Device Logs (Please attach the log file):
• Host Machine OS:
• Commissioner app and versions if present:
• Commissioner's logs if present:

Error Logs
Performing configure step for 'chip_gn'FAILED: esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure /home/aryan/esp-matter/examples/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
cd /home/aryan/esp-matter/examples/light/build/esp-idf/chip && /usr/local/bin/gn --root=/home/aryan/esp-matter/connectedhomeip/connectedhomeip/config/esp32 gen --check --fail-on-unused-args /home/aryan/esp-matter/examples/light/build/esp-idf/chip && /usr/bin/cmake -E touch /home/aryan/esp-matter/examples/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
ERROR at //build_overrides/pigweed_environment.gni:20:1: Unable to load "/home/aryan/esp-matter/connectedhomeip/connectedhomeip/config/esp32/third_party/connectedhomeip/build_overrides/pigweed_environment.gni".
import("${_bootstrap_root}/build_overrides/pigweed_environment.gni")
^------------------------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_protobuf_compiler/proto.gni:16:1: whence it was imported.
import("//build_overrides/pigweed_environment.gni")
^-------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_log/BUILD.gn:22:1: whence it was imported.
import("$dir_pw_protobuf_compiler/proto.gni")
^-------------------------------------------
See //third_party/connectedhomeip/src/lib/support/BUILD.gn:351:5: which caused the file to be included.
"$dir_pw_log:impl",
^-----------------

[sayondeep]

@Aryan-Tamboli

Describe the bug
A clear and concise description of what the bug is.

To diagnose the issue further, please give clear description of what you did...on running which command it failed

Environment

ESP-Matter Commit Id:
ESP-IDF Commit Id:
SoC (eg: ESP32 or ESP32-C3):
Device Logs (Please attach the log file):
Host Machine OS:
Commissioner app and versions if present:
Commissioner's logs if present:

Please provide the requested details

[AFellmett]

I got the exact same issue. Without hijacking the thread I'll provide my information as well.

ESP-Matter Commit Id: 91b8cb1
ESP-IDF Commit Id: 3b8741b172dc951e18509698dee938304bcf1523
SoC (eg: ESP32 or ESP32-C3): ESP32-H2
Device Logs (Please attach the log file): there are none, cause the example does not build
Host Machine OS: Windows 11 (WSL2 - Ubuntu 22.04)
Commissioner app and versions if present: -
Commissioner's logs if present: -

Setting up ESP-IDF & ESP-Matter with VSCode Extension and within wsl2.
It is possible to use the provided examples like blink from esp-idf and build & flash them.
Trying out the provided light example within esp-matter the above error occurs.
Just create a project from example - select the serial port and the IDF_TARGET and build the project.

[940/2046] Performing configure step for 'chip_gn'
FAILED: esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure //matter/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure 
cd //matter/light/build/esp-idf/chip && /usr/bin/gn --root=//.espressif/esp-matter/connectedhomeip/connectedhomeip/config/esp32 gen --check --fail-on-unused-args //matter/light/build/esp-idf/chip && //.espressif/tools/cmake/3.24.0/bin/cmake -E touch //matter/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
ERROR at //build_overrides/pigweed_environment.gni:20:1: Unable to load "//.espressif/esp-matter/connectedhomeip/connectedhomeip/config/esp32/third_party/connectedhomeip/build_overrides/pigweed_environment.gni".
import("${_bootstrap_root}/build_overrides/pigweed_environment.gni")
^------------------------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_protobuf_compiler/proto.gni:16:1: whence it was imported.
import("//build_overrides/pigweed_environment.gni")
^-------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_log/BUILD.gn:22:1: whence it was imported.
import("$dir_pw_protobuf_compiler/proto.gni")
^-------------------------------------------
See //third_party/connectedhomeip/src/lib/support/BUILD.gn:351:5: which caused the file to be included.
    "$dir_pw_log:impl",
    ^-----------------
[951/2046] Building CXX object esp-idf/openthread/CMakeFiles/__idf_openthread.dir/openthread/src/core/net/srp_client.cpp.obj
ninja: build stopped: subcommand failed.

[Aryan-Tamboli]

ESP-Matter Commit Id: 91b8cb1
ESP-IDF Commit Id:
SoC (eg: ESP32 or ESP32-C3): ESP32C3
Host Machine OS: Windows 11 (WSL2 - Ubuntu 22.04)

I tried following commands in steps

cd esp-idf; source ./export.sh; cd ..
cd esp-matter; source ./export.sh; cd ..

cd esp-matter/example/room_air_conditioner

idf.py set-target esp32c3

idf.py build

build_ac_example.txt

[Aryan-Tamboli]

I have attached the build log file above , the errors are :
[940/2046] Performing configure step for 'chip_gn'
FAILED: esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure //matter/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
cd //matter/light/build/esp-idf/chip && /usr/bin/gn --root=//.espressif/esp-matter/connectedhomeip/connectedhomeip/config/esp32 gen --check --fail-on-unused-args //matter/light/build/esp-idf/chip && //.espressif/tools/cmake/3.24.0/bin/cmake -E touch //matter/light/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
ERROR at //build_overrides/pigweed_environment.gni:20:1: Unable to load "//.espressif/esp-matter/connectedhomeip/connectedhomeip/config/esp32/third_party/connectedhomeip/build_overrides/pigweed_environment.gni".
import("${_bootstrap_root}/build_overrides/pigweed_environment.gni")
^------------------------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_protobuf_compiler/proto.gni:16:1: whence it was imported.
import("//build_overrides/pigweed_environment.gni")
^-------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_log/BUILD.gn:22:1: whence it was imported.
import("$dir_pw_protobuf_compiler/proto.gni")
^-------------------------------------------
See //third_party/connectedhomeip/src/lib/support/BUILD.gn:351:5: which caused the file to be included.
"$dir_pw_log:impl",
^-----------------
[951/2046] Building CXX object esp-idf/openthread/CMakeFiles/__idf_openthread.dir/openthread/src/core/net/srp_client.cpp.obj
ninja: build stopped: subcommand failed.

[sayondeep]

@AFellmett @Aryan-Tamboli
For both of you, I can see that esp-matter is being referred form espressif tool directory i.e., .espressif/esp-matter
Please move the esp-matter outside tools directory to somewhere else.

If using vs-code extension to install esp-matter,
please try to install esp-matter in different directory and not inside esp-idf tools directory [do not select (use current esp-idf tools directory) while installing from the extension]. You can do this instead,
choose existing repository --> github --> select a directory to install esp-matter.

If installation fails via vs-code extension please follow the instructions here to install using terminal instead.

If using vs-code is necessary, first clone esp-matter to some other directory and then select that directory to install from vs-code as mentioned above.

[AFellmett]

@sayondeep
Putting it into sperate directories solved my issue.

Thx for the support.

[Aryan-Tamboli]

Error is still there - [640/1215] Performing configure step for 'chip_gn'FAILED: esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure /home/aryan/esp-matter/examples/room_air_conditioner/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
cd /home/aryan/esp-matter/examples/room_air_conditioner/build/esp-idf/chip && /usr/local/bin/gn --root=/home/aryan/esp-matter/connectedhomeip/connectedhomeip/config/esp32 gen --check --fail-on-unused-args /home/aryan/esp-matter/examples/room_air_conditioner/build/esp-idf/chip && /usr/bin/cmake -E touch /home/aryan/esp-matter/examples/room_air_conditioner/build/esp-idf/chip/chip_gn-prefix/src/chip_gn-stamp/chip_gn-configure
ERROR at //build_overrides/pigweed_environment.gni:20:1: Unable to load "/home/aryan/esp-matter/connectedhomeip/connectedhomeip/config/esp32/third_party/connectedhomeip/build_overrides/pigweed_environment.gni".
import("${_bootstrap_root}/build_overrides/pigweed_environment.gni")
^------------------------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_protobuf_compiler/proto.gni:16:1: whence it was imported.
import("//build_overrides/pigweed_environment.gni")
^-------------------------------------------------
See //third_party/connectedhomeip/third_party/pigweed/repo/pw_unit_test/BUILD.gn:21:1: whence it was imported.
import("$dir_pw_protobuf_compiler/proto.gni")
^-------------------------------------------
See //third_party/connectedhomeip/src/lib/support/BUILD.gn:352:5: which caused the file to be included.
"$dir_pw_unit_test",
^------------------

[sayondeep]

@Aryan-Tamboli are you using terminal or vs-code extension to build the project?
Can you please try using terminal if not tried using it.

Was the installation of esp-matter successfull? i.e., running ./install.sh
Please remove the environment by running rm -rf path/to/esp-matter/connectedhomeip/connectedhomeip/.environment and try to install esp-matter.

[Aryan-Tamboli]

I have WSL2 setup, I build codes from the wsl terminal itself. I am able to flash CHIP Matter sdk examples but ESP-Matter sdk cause these errors.

[sayondeep]

@Aryan-Tamboli

Was the installation of esp-matter successfull? i.e., running ./install.sh
Please remove the environment by running rm -rf path/to/esp-matter/connectedhomeip/connectedhomeip/.environment and try to reinstall esp-matter.

did you try these?
Please check the steps here just in case you missed any.

[Aryan-Tamboli]

Thanks @sayondeep , now the I am able to flash the code successfully

[hexatriene]

Workaround for Windows users (and others who cannot run bootstrap.sh)

I encountered this same issue building on Windows 11 with ESP-IDF v5.5.1 for ESP32-C6. Since bootstrap.sh is difficult to run on Windows and the ESP32 build uses ESP-IDF's toolchain (not pigweed's CIPD tools), I found that creating a minimal stub file resolves the issue.

Solution:

Create the file connectedhomeip/connectedhomeip/build_overrides/pigweed_environment.gni with the following contents:

  # Copyright (c) 2020 Project CHIP Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  # http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.

  # Minimal pigweed environment for ESP32 builds
  # ESP-IDF provides its own toolchain, so CIPD tools are not needed

  declare_args() {
    pw_env_setup_PACKAGE_ROOT = ""
    pw_env_setup_CIPD_PYTHON = ""
    pw_env_setup_VIRTUALENV_ROOT = ""
  }

Tested with:

• Windows 11
• ESP-IDF v5.5.1
• ESP-Matter (main branch)
• Target: ESP32-C6
• Example: examples/light

The build completes successfully and the device commissions and operates correctly with Apple Home.

Note: Windows users may also need the path normalization fix from project-chip/connectedhomeip#42498 to resolve a separate Windows build issue with create_args_gn.py.

Would the maintainers consider adding this stub file to the repo (or to esp-matter's install process) to support Windows builds without requiring the full bootstrap?