Sh: 1: xtensa-esp32-elf-g++: not found

[kevjs1982]

I’ve updated ESPHome on my Raspberry Pi this morning to 2022.12 and am getting the error:-

sh: 1: xtensa-esp32-elf-g++: not found

Uninstalling and reinstalling the ESPHome Addon from the Home Add-on Store hasn’t helped - looks like it (?) downloads and installs OK?

INFO [email protected]+2021r2-patch3 has been installed!

but isn’t accessible?

Anyone know how to fix this / what debug steps to take?

Running on

Home Assistant 2022.11.2
Supervisor 2022.11.2
Operating System 9.3
Frontend 20221108.0 - latest

Full logs:-

INFO Reading configuration /config/esphome/vandoorne.yaml...
INFO Generating C++ source...
INFO Compiling app...
Processing vandoorne (board: nodemcu-32s; framework: arduino; platform: platformio/espressif32 @ 5.2.0)
--------------------------------------------------------------------------------
Platform Manager: Installing platformio/espressif32 @ 5.2.0
INFO Installing platformio/espressif32 @ 5.2.0
Downloading  [####################################]  100%
Unpacking  [####################################]  100%
Platform Manager: [email protected] has been installed!
INFO [email protected] has been installed!
Tool Manager: Installing espressif/toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
INFO Installing espressif/toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
Downloading  [####################################]  100%          
Unpacking  [####################################]  100%          
Tool Manager: [email protected]+2021r2-patch3 has been installed!
INFO [email protected]+2021r2-patch3 has been installed!
Tool Manager: Installing platformio/framework-arduinoespressif32 @ ~3.20005.0
INFO Installing platformio/framework-arduinoespressif32 @ ~3.20005.0
Downloading  [####################################]  100%          
Unpacking  [####################################]  100%          
Tool Manager: [email protected] has been installed!
INFO [email protected] has been installed!
Tool Manager: Installing platformio/tool-esptoolpy @ ~1.40201.0
INFO Installing platformio/tool-esptoolpy @ ~1.40201.0
Downloading  [####################################]  100%
Unpacking  [####################################]  100%
Tool Manager: [email protected] has been installed!
INFO [email protected] has been installed!
Tool Manager: Installing platformio/tool-scons @ ~4.40400.0
INFO Installing platformio/tool-scons @ ~4.40400.0
Downloading  [####################################]  100%
Unpacking  [####################################]  100%
Tool Manager: [email protected] has been installed!
INFO [email protected] has been installed!
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
 - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch3
LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
Dependency Graph
|-- WiFi @ 2.0.0
|-- ESPmDNS @ 2.0.0
|-- Update @ 2.0.0
Compiling /data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_connection.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling /data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_frame_helper.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling /data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_pb2.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
*** [/data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_connection.cpp.o] Error 127
Compiling /data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_pb2_service.cpp.o
*** [/data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_frame_helper.cpp.o] Error 127
*** [/data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_pb2.cpp.o] Error 127
sh: 1: xtensa-esp32-elf-g++: not found
*** [/data/vandoorne/.pioenvs/vandoorne/src/esphome/components/api/api_pb2_service.cpp.o] Error 127
========================= [FAILED] Took 222.84 seconds =========================

[kevjs1982]

Looks like ESPHome have broke it and don’t care about fixing it

Cannot compile with 2022.12.0

[kevjs1982]

Turns out it was a bug with the AddOn on all 32bit platforms.

The 2012.12.01 update has resolved this issue.

[alpat59]

ESPHome 2022.12.8 installed as HA add-on on Raspberry and I have the same problem
“sh: 1: xtensa-esp32-elf-g++: not found”

Could someone try to fix it ?
Thank you for support

[PaulUitWijchen (Paul)]

Hi kevjs1982,
You are saying this issue is solved. But can you tell me how? I’m trying to compile on a rapsberrypi in a container, and I’m getting the same error. I pulled the version 2022.12.8 but I still get the same error:

Compiling .pioenvs/ketelmonitor/src/esphome/components/adc/adc_sensor.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found

Any suggestions?

• Paul

[dirkmuc (Dirk)]

Hi,

I have still the issue with:

sh: 1: xtensa-esp32-elf-g++: not found

I am running ESPHome 2023.3.1 under

Home Assistant 2023.3.6
Supervisor 2023.03.2
Operating System 9.5
Frontend 20230309.1 - latest

Does anyone see the same issue? Is there a solution in place?

Thanks for any help!

Dirk

[42madorna (Miguel Ángel Adorna Ruiz)]

Hi, I’m facing this issue too while trying to flash an ESP32C3.

sh: 1: riscv32-esp-elf-g++: not found

Home Assistant 2023.7.1
Supervisor 2023.08.1
Operating System 10.3
Frontend 20230705.1 - latest

[jaap (Jaap Spies)]

The same here with ESPhome 2023.8.2. The solution doesn’t work for me.
Putting back backup ESPhome 2023.7.1 makes no difference.

[mortenx]

same problem
with ESP32
but not with 8266

Compiling .pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_connection.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling .pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_frame_helper.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling .pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_pb2.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
*** [.pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_connection.cpp.o] Error 127
Compiling .pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_pb2_service.cpp.o
*** [.pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_frame_helper.cpp.o] Error 127
*** [.pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_pb2.cpp.o] Error 127
sh: 1: xtensa-esp32-elf-g++: not found
*** [.pioenvs/esphome-web-6a91e1/src/esphome/components/api/api_pb2_service.cpp.o] Error 127
========================== [FAILED] Took 6.70 seconds ==========================

• Core2023.11.0
• Supervisor2023.11.0
• Operating System11.1
• Frontend20231030.1

[morettiluca71 (Lucko71)]

Same here (only ESP32 broken)

• Core2023.11.2
• Supervisor2023.11.3
• Operating System11.1

Compiling .pioenvs/multiospiti32/src/esphome/components/adc/adc_sensor.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling .pioenvs/multiospiti32/src/esphome/components/api/api_connection.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling .pioenvs/multiospiti32/src/esphome/components/api/api_frame_helper.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
*** [.pioenvs/multiospiti32/src/esphome/components/adc/adc_sensor.cpp.o] Error 127
Compiling .pioenvs/multiospiti32/src/esphome/components/api/api_pb2.cpp.o
*** [.pioenvs/multiospiti32/src/esphome/components/api/api_connection.cpp.o] Error 127
*** [.pioenvs/multiospiti32/src/esphome/components/api/api_frame_helper.cpp.o] Error 127
sh: 1: xtensa-esp32-elf-g++: not found
*** [.pioenvs/multiospiti32/src/esphome/components/api/api_pb2.cpp.o] Error 127
========================== [FAILED] Took 5.08 seconds ==========================

[ricarva (Ricardo)]

Just want to add another voice on here.

This issue seems to have been introduced with ESPHome 2023.11.0.

[ricarva (Ricardo)]

I’ve reported the issue in ESPHome’s github.

[mortenx]

HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash

• toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
  Dependency Graph
  |-- AsyncTCP-esphome @ 2.0.1
  |-- WiFi @ 2.0.0
  |-- FS @ 2.0.0
  |-- Update @ 2.0.0
  |-- ESPAsyncWebServer-esphome @ 3.1.0
  |-- DNSServer @ 2.0.0
  |-- ESPmDNS @ 2.0.0
  |-- ArduinoJson @ 6.18.5
  Compiling .pioenvs/s3/src/esphome/components/binary_sensor/automation.cpp.o
  sh: 1: xtensa-esp32-elf-g++: not found
  Compiling .pioenvs/s3/src/esphome/components/binary_sensor/binary_sensor.cpp.o
  sh: 1: xtensa-esp32-elf-g++: not found
  Compiling .pioenvs/s3/src/esphome/components/binary_sensor/filter.cpp.o
  sh: 1: xtensa-esp32-elf-g++: not found
  *** [.pioenvs/s3/src/esphome/components/binary_sensor/automation.cpp.o] Error 127
  Compiling .pioenvs/s3/src/esphome/components/ble_client/automation.cpp.o
  *** [.pioenvs/s3/src/esphome/components/binary_sensor/binary_sensor.cpp.o] Error 127
  *** [.pioenvs/s3/src/esphome/components/binary_sensor/filter.cpp.o] Error 127
  sh: 1: xtensa-esp32-elf-g++: not found
  *** [.pioenvs/s3/src/esphome/components/ble_client/automation.cpp.o] Error 127
  ========================== [FAILED] Took 7.05 seconds ==========================

[mortenx]

tested with version: 2023.10.6 then its ok.
problem is in ESPHome 2023.11.0.

[boldie]

Still not fixed

[bjm (Brent (the Other Other Kiwi))]

same issue on Current version: 2024.5.5

[klavergne (Kevin LaVergne)]

Seems like this still isn’t fixed. ESPHome version 2025.4.1

INFO ESPHome 2025.4.1
INFO Reading configuration /config/esphome/bed-sensor.yaml...
INFO Generating C++ source...
INFO Compiling app...
Processing bed-sensor (board: nodemcu-32s; framework: arduino; platform: platformio/[email protected])
--------------------------------------------------------------------------------
HARDWARE: ESP32 240MHz, 320KB RAM, 4MB Flash
 - toolchain-xtensa-esp32 @ 8.4.0+2021r2-patch5
Dependency Graph
|-- AsyncTCP-esphome @ 2.1.4
|-- WiFi @ 2.0.0
|-- FS @ 2.0.0
|-- Update @ 2.0.0
|-- ESPAsyncWebServer-esphome @ 3.3.0
|-- DNSServer @ 2.0.0
|-- ESPmDNS @ 2.0.0
|-- noise-c @ 0.1.6
Compiling .pioenvs/bed-sensor/src/esphome/components/api/api_connection.cpp.o
sh: 1: xtensa-esp32-elf-g++: not found
Compiling .pioenvs/bed-sensor/src/esphome/components/api/api_frame_helper.cpp.o
*** [.pioenvs/bed-sensor/src/esphome/components/api/api_connection.cpp.o] Error 127
sh: 1: xtensa-esp32-elf-g++: not found
*** [.pioenvs/bed-sensor/src/esphome/components/api/api_frame_helper.cpp.o] Error 127
==========================
[FAILED] Took 4.58 seconds
==========================

[Wout1]

I think this is still a problem.

INFO ESPHome 2025.5.0
INFO Reading configuration /config/test-led.yaml...
INFO Generating C++ source...
INFO Compiling app...
Processing test-led (board: esp32-s3-devkitc-1; framework: arduino; platform: platformio/[email protected])
--------------------------------------------------------------------------------
HARDWARE: ESP32S3 240MHz, 320KB RAM, 8MB Flash
 - toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 
 - toolchain-xtensa-esp32s3 @ 8.4.0+2021r2-patch5
Dependency Graph
|-- AsyncTCP-esphome @ 2.1.4
|-- WiFi @ 2.0.0
|-- FS @ 2.0.0
|-- Update @ 2.0.0
|-- ESPAsyncWebServer-esphome @ 3.3.0
|-- DNSServer @ 2.0.0
|-- ESPmDNS @ 2.0.0
|-- noise-c @ 0.1.6
Compiling .pioenvs/test-led/src/esphome/components/api/api_connection.cpp.o
sh: 1: xtensa-esp32s3-elf-g++: not found
Compiling .pioenvs/test-led/src/esphome/components/api/api_frame_helper.cpp.o
*** [.pioenvs/test-led/src/esphome/components/api/api_connection.cpp.o] Error 127
sh: 1: xtensa-esp32s3-elf-g++: not found
*** [.pioenvs/test-led/src/esphome/components/api/api_frame_helper.cpp.o] Error 127
========================= [FAILED] Took 16.87 seconds =========================

[ovisopa]

hello everyone. Is there a way to fix it ?

I was compiling a few days ago without any problem, today I updated HA Core, HA OS, ESPHome to the latest, and a few more addons and it seems it does not compile anymore beasue of this issue :

INFO ESPHome 2025.8.0
INFO Reading configuration /config/esphome/led-mosfet-1-esp32.yaml...
INFO Generating C++ source...
INFO Compiling app...
Processing led-mosfet-1-esp32 (board: esp32-s3-devkitc-1; framework: arduino; platform: https://github.com/pioarduino/platform-espressif32/releases/download/54.03.21-2/platform-espressif32.zip)
--------------------------------------------------------------------------------
INFO Package configuration completed successfully
INFO Package configuration completed successfully
HARDWARE: ESP32S3 240MHz, 320KB RAM, 8MB Flash
 - framework-arduinoespressif32 @ 3.2.1 
 - framework-arduinoespressif32-libs @ 5.4.0+sha.858a988d6e 
 - tool-esptoolpy @ 5.0.2 
 - tool-mklittlefs @ 3.2.0 
 - toolchain-xtensa-esp-elf @ 14.2.0+20241119
Dependency Graph
|-- Networking @ 3.2.1
|-- AsyncTCP @ 3.4.5
|-- WiFi @ 3.2.1
|-- FS @ 3.2.1
|-- Update @ 3.2.1
|-- ESPAsyncWebServer @ 3.7.10
|-- ESP32 Async UDP @ 3.2.1
|-- DNSServer @ 3.2.1
|-- ESPmDNS @ 3.2.1
|-- noise-c @ 0.1.10
Compiling .pioenvs/led-mosfet-1-esp32/lib4c5/Network/NetworkClient.cpp.o
sh: 1: xtensa-esp32s3-elf-g++: not found
Compiling .pioenvs/led-mosfet-1-esp32/lib4c5/Network/NetworkEvents.cpp.o
*** [.pioenvs/led-mosfet-1-esp32/lib4c5/Network/NetworkClient.cpp.o] Error 127
sh: 1: xtensa-esp32s3-elf-g++: not found
*** [.pioenvs/led-mosfet-1-esp32/lib4c5/Network/NetworkEvents.cpp.o] Error 127
========================= [FAILED] Took 17.29 seconds =========================

Any Sollution ? Thank you

[ovisopa]

I finally fixed it with the help of a developer, and after one more uninstall and reinstall of ESPHome

Here is the full topic for anyone esle struggling with this problem.

Can't compile any file since yesterday (ERROR Timeout in idf_tools.py after 300s .... sh: 1: xtensa-esp32s3-elf-g++: not found)