Hi, I have had all the versions of esp32 web server and all programs running ok.
The updated system to pioarduino in version 3 has stopped everything. 
So I uninstalled vscode, python and tried to start from scratch using version 3 book.
Now it comes up with an error:

[10/26/2025, 1:51:16 PM] Unable to resolve configuration with compilerPath: “C:/Users/Richard/.platformio/packages/toolchain-xtensa32/bin/xtensa-esp32-elf-gcc.exe”
[10/26/2025, 1:51:16 PM] Unable to resolve configuration with compilerPath: “xtensa-esp32-elf-gcc”

and I can’t seem to get any further.

If I do try to run the esp32-blink it has these errors:

Start your code hereProcessing esp32doit-devkit-v1 (platform: https://github.com/pioarduino/platform-espressif32/releases/download/stable/platform-espressif32.zip; board: esp32doit-devkit-v1; framework: arduino)
-----------------------------------------------------------------------------------------------------------------------------Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif32/esp32doit-devkit-v1.html
PLATFORM: Espressif 32 (55.3.32) > DOIT ESP32 DEVKIT V1
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
DEBUG: Current (cmsis-dap) External (cmsis-dap, esp-bridge, esp-prog, iot-bus-jtag, jlink, minimodule, olimex-arm-usb-ocd, olimex-arm-usb-ocd-h, olimex-arm-usb-tiny-h, olimex-jtag-tiny, tumpa)
PACKAGES:
- contrib-piohome @ 3.4.4
- framework-arduinoespressif32 @ 3.3.2
- framework-arduinoespressif32-libs @ 5.5.0+sha.07e9bf4970
- tool-esptoolpy @ 5.1.0
- tool-mklittlefs @ 3.2.0
- toolchain-xtensa-esp-elf @ 14.2.0+20250730
*** Applied include path shortening for 292 framework paths ***
*** Path length reduced from 34101 to ~11710 characters ***
*** Estimated savings: 21900 characters ***
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
LDF Modes: Finder ~ chain, Compatibility ~ soft
Found 42 compatible libraries
Scanning dependencies...
No dependencies
Building in release mode
Compiling .pio\build\esp32doit-devkit-v1\src\main.cpp.o
'xtensa-esp32-elf-g++' is not recognized as an internal or external command,
operable program or batch file.
Compiling .pio\build\esp32doit-devkit-v1\FrameworkArduino\ColorFormat.c.o
*** [.pio\build\esp32doit-devkit-v1\src\main.cpp.o] Error 1
'xtensa-esp32-elf-gcc' is not recognized as an internal or external command,
operable program or batch file.
*** [.pio\build\esp32doit-devkit-v1\FrameworkArduino\ColorFormat.c.o] Error 1

 
Any help would be grateful.
 

Hi.
You said you uninstalled previous versions, but there are probably some old files making some sort of conflict.
Double-check your installation folder.
 
Regards,
Sara

Thanks Sara,
Totally removed everything again and re-installed, now seems ok and working 🙂

Great.
I’m glad everything is working as expected now.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara