Build Error: "'xtensa-esp32-elf-g++' is not recognized as an internal or external command" on PlatformIO

[DreamerDeLy]

PROBLEM DESCRIPTION

When building the project for the esp32dev board, the following error is encountered:

Compiling .pio\build\esp32dev\lib576\Network\NetworkClient.cpp.o
'xtensa-esp32-elf-g++' is not recognized as an internal or external command,
operable program or batch file.
Compiling .pio\build\esp32dev\lib576\Network\NetworkEvents.cpp.o
'xtensa-esp32-elf-g++' is not recognized as an internal or external command,
operable program or batch file.
Compiling .pio\build\esp32dev\lib576\Network\NetworkInterface.cpp.o
*** [.pio\build\esp32dev\lib576\Network\NetworkClient.cpp.o] Error 1
*** [.pio\build\esp32dev\lib576\Network\NetworkEvents.cpp.o] Error 1
'xtensa-esp32-elf-g++' is not recognized as an internal or external command,
operable program or batch file.
*** [.pio\build\esp32dev\lib576\Network\NetworkInterface.cpp.o] Error 1

Troubleshooting Already Attempted:

• Reinstalled the ESP32 toolchain.
• Tried different versions of the ESP32 platform package.
• Added the toolchain folder to the system PATH.

TO REPRODUCE

1. Use the following configuration in platformio.ini:

[env:esp32dev]
platform = https://github.com/pioarduino/platform-espressif32/releases/download/stable/platform-espressif32.zip
; platform = espressif32
board = esp32dev
framework = arduino

2. Run the build using PlatformIO.

EXPECTED BEHAVIOUR

The project should compile successfully without errors related to the missing compiler (xtensa-esp32-elf-g++).

ADDITIONAL CONTEXT

PlatformIO system info.

PlatformIO Core             6.1.18
Python                      3.11.7-final.0
System Type                 windows_amd64
Platform                    Windows-10
File System Encoding        utf-8
Locale Encoding             cp1251
PlatformIO Core Directory   C:\Users\dream\.platformio
PlatformIO Core Executable  C:\Users\dream\.platformio\penv\Scripts\platformio.exe
Python Executable           C:\Users\dream\.platformio\penv\Scripts\python.exe
Global Libraries            0
Development Platforms       4
Tools & Toolchains          13

[Jason2866]

Limitations of Windows :-(
Have you deleted the complete hidden folder .platformio already ?

You should add all not needed and used libs (from Arduino core) to the platform.ini entry lib_ignore
I have implemented especially for Windows a path removing code for not needed includes. This can solve the Windows path and command length limit which is the reason for this issue.
See example

platform-espressif32/examples/arduino-blink/platformio.ini

Lines 147 to 177 in 85062ff

	[env:esp32-c6-devkitc-1]
	platform = espressif32
	framework = arduino
	build_type = debug
	board = esp32-c6-devkitc-1
	monitor_speed = 115200
	lib_ignore = wifi
	ble
	dsp
	spiffs
	NetworkClientSecure
	Matter
	Zigbee
	ESP RainMaker
	custom_component_remove = espressif/esp_hosted
	espressif/esp_wifi_remote
	espressif/network_provisioning
	espressif/mdns
	espressif/esp-dsp
	espressif/esp_modem
	espressif/esp32-camera
	espressif/libsodium
	espressif/esp-modbus
	espressif/qrcode
	espressif/esp_insights
	espressif/esp_diag_data_store
	espressif/esp_diagnostics
	espressif/cbor
	espressif/esp_rainmaker
	espressif/rmaker_common
	chmorgan/esp-libhelix-mp3

If you have easy access to Linux or MacOs use this. There are no such problems

[DreamerDeLy]

I checked and this does not occur on all machines. On another PC with a clean installation everything works.

Is it possible to increase the length limit?

[Jason2866]

Is it possible to increase the length limit?

Good one :-). Microsoft did not manage this since > 30 years.

There is a setting to increase to 32767 bytes https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation?tabs=registry