Alexa gadget example

[Mysteryduck]

Hi all,

I've found an alexa gadget example but I can't seem to get it running on my nRF52840-DK. The example I've found was located under repository:

https://github.com/nordic-auko/fw-nrfconnect-nrf.git

I've installed the following tools on my windows 10 PC already:

1) zephyr, This can run the blinky example on my nRF52840-DK, can build and flash.

2) nanoPB, although the NANOPB_PATH didn't got found in the t manifest? I fixed it by hard coding it for now, need to find the solution yet

3) ALEXA_EMBEDDED_PATH, same issue as nr 2 and also hard coded it temporary just to see if building it is possible

Now West is willing to start building the application as all configurations are met but I still get errors. 

file *\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

Anybody got an idea on how to proceed?

Thanks

[Mysteryduck]

The compleet logging of the West build step is below:

%REPOSITORY_HOME_PATH%\fw-nrfconnect-nrf>west build -p auto -b nrf52840dk_nrf52840 samples/bluetooth/alexa_gadget
-- west build: generating a build system
Including boilerplate (Zephyr base): %REPOSITORY_HOME_PATH%/zephyrproject/zephyr/cmake/app/boilerplate.cmake
-- Application: %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/samples/bluetooth/alexa_gadget
-- Zephyr version: 2.4.0-rc1 (%REPOSITORY_HOME_PATH%/zephyrproject/zephyr)
-- Found Python3: C:/Python37/python.exe (found suitable version "3.7.0", minimum required is "3.6") found components: Interpreter
-- Found west (found suitable version "0.7.3", minimum required is "0.7.1")
-- Board: nrf52840dk_nrf52840
-- Cache files will be written to: %REPOSITORY_HOME_PATH%/zephyrproject/zephyr/.cache
-- Found toolchain: gnuarmemb (c:/gnuarmemb)
-- Found BOARD.dts: %REPOSITORY_HOME_PATH%/zephyrproject/zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840.dts
-- Generated zephyr.dts: %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build/zephyr/zephyr.dts
-- Generated devicetree_unfixed.h: %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build/zephyr/include/generated/devicetree_unfixed.h
Parsing %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/samples/bluetooth/alexa_gadget/Kconfig
Loaded configuration '%REPOSITORY_HOME_PATH%/zephyrproject/zephyr/boards/arm/nrf52840dk_nrf52840/nrf52840dk_nrf52840_defconfig'
Merged configuration '%REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/samples/bluetooth/alexa_gadget/prj.conf'
Configuration saved to '%REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build/zephyr/.config'
Kconfig header saved to '%REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build/zephyr/include/generated/autoconf.h'
-- The C compiler identification is GNU 9.3.1
-- The CXX compiler identification is GNU 9.3.1
-- The ASM compiler identification is GNU
-- Found assembler: C:/gnuarmemb/bin/arm-none-eabi-gcc.exe
CMake Warning at %REPOSITORY_HOME_PATH%/zephyrproject/zephyr/CMakeLists.txt:1327 (message):
__ASSERT() statements are globally ENABLED

statusUse Python and west to find the alexa-embedded path.
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Python37\lib\site-packages\west\manifest.py", line 476, in get_projects
raise ValueError(unknown, uncloned)
ValueError: (['Alexa-Gadgets-Embedded-Sample-Code'], [])
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "C:\Python37\lib\site-packages\west\manifest.py", line 476, in get_projects
raise ValueError(unknown, uncloned)
ValueError: (['nanopb'], [])
-- Configuring done
-- Generating done
-- Build files have been written to: %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build
-- west build: building application
[17/252] cmd.exe /C "cd /D %REPOSITORY_HOME_PATH%\fw-nrfconnect-nrf.../fw-nrfconnect-nrf/build/generated/alexa/protobuf custom_event.proto"
FAILED: src/gadgets/CMakeFiles/protobuf_generation_CUSTOM generated/alexa/protobuf/custom_event.pb.c
cmd.exe /C "cd /D %REPOSITORY_HOME_PATH%\fw-nrfconnect-nrf\build\src\gadgets && "C:\Program Files\CMake\bin\cmake.exe" -E chdir %REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/samples/bluetooth/alexa_gadget/src/gadgets/proto %REPOSITORY_HOME_PATH%/tools/vcpkg/Protoc/bin/protoc.exe -I. -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/ConnectionHelpers/BLE/Proto -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/ConnectionHelpers/BLE/Proto -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/ConnectionHelpers/BLE/Proto -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/ConnectionHelpers/BLE/Proto -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/parser -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/common -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/parser -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/common -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Discovery/Discover -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Discovery/Discover -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Discovery/Discover.Response -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Discovery/Discover.Response -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Notifications/SetIndicator -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Notifications/SetIndicator -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Notifications/ClearIndicator -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Notifications/ClearIndicator -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alerts/SetAlert -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alerts/SetAlert -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alerts/DeleteAlert -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alerts/DeleteAlert -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.StateListener/StateUpdate -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.StateListener/StateUpdate -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.SpeechData/Speechmarks -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.SpeechData/Speechmarks -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.MusicData/Tempo -I. -I%REPOSITORY_HOME_PATH%/ext/Alexa/Gadgets_sampleCode/AlexaGadgetsProtobuf/Alexa.Gadget.MusicData/Tempo -I. -I%REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/samples/bluetooth/alexa_gadget/src/gadgets/proto --nanopb_out=%REPOSITORY_HOME_PATH%/fw-nrfconnect-nrf/build/generated/alexa/protobuf custom_event.proto"
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
[18/252] src\gadgets\CMakeFiles\protobuf_generation_MUSICDATA-6dfe0c4.bat 7fac4e11ef2aa6ff
FAILED: src/gadgets/CMakeFiles/protobuf_generation_MUSICDATA generated/alexa/protobuf/alexaGadgetMusicDataTempoDirective.pb.c generated/alexa/protobuf/alexaGadgetMusicDataTempoDirectivePayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_MUSICDATA-6dfe0c4.bat 7fac4e11ef2aa6ff
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[19/252] src\gadgets\CMakeFiles\protobuf_generation_NOTIFICATIONS-bfcedad.bat 9cb15f0c95a18cff
FAILED: src/gadgets/CMakeFiles/protobuf_generation_NOTIFICATIONS generated/alexa/protobuf/notificationsSetIndicatorDirective.pb.c generated/alexa/protobuf/notificationsSetIndicatorDirectivePayload.pb.c generated/alexa/protobuf/notificationsClearIndicatorDirective.pb.c generated/alexa/protobuf/notificationsClearIndicatorDirectivePayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_NOTIFICATIONS-bfcedad.bat 9cb15f0c95a18cff
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[20/252] src\gadgets\CMakeFiles\protobuf_generation_SPEECHDATA-a50db88.bat 7e08b61a9e35d07b
FAILED: src/gadgets/CMakeFiles/protobuf_generation_SPEECHDATA generated/alexa/protobuf/alexaGadgetSpeechDataSpeechmarksDirective.pb.c generated/alexa/protobuf/alexaGadgetSpeechDataSpeechmarksDirectivePayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_SPEECHDATA-a50db88.bat 7e08b61a9e35d07b
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[21/252] src\gadgets\CMakeFiles\protobuf_generation_STATELISTENER-8c1e82a.bat d212201b72209005
FAILED: src/gadgets/CMakeFiles/protobuf_generation_STATELISTENER generated/alexa/protobuf/alexaGadgetStateListenerStateUpdateDirective.pb.c generated/alexa/protobuf/alexaGadgetStateListenerStateUpdateDirectivePayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_STATELISTENER-8c1e82a.bat d212201b72209005
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[22/252] src\gadgets\CMakeFiles\protobuf_generation_BASE-aa7d0b8.bat 5a7f92dc64169ead
FAILED: src/gadgets/CMakeFiles/protobuf_generation_BASE generated/alexa/protobuf/accessories.pb.c generated/alexa/protobuf/common.pb.c generated/alexa/protobuf/device.pb.c generated/alexa/protobuf/firmware.pb.c generated/alexa/protobuf/directiveParser.pb.c generated/alexa/protobuf/directiveHeader.pb.c generated/alexa/protobuf/eventParser.pb.c generated/alexa/protobuf/eventHeader.pb.c generated/alexa/protobuf/alexaDiscoveryDiscoverDirective.pb.c generated/alexa/protobuf/alexaDiscoveryDiscoverDirectivePayload.pb.c generated/alexa/protobuf/alexaDiscoveryDiscoverResponseEvent.pb.c generated/alexa/protobuf/alexaDiscoveryDiscoverResponseEventPayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_BASE-aa7d0b8.bat 5a7f92dc64169ead
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[23/252] src\gadgets\CMakeFiles\protobuf_generation_ALERTS-c170e20.bat 8e08add4a8d905a9
FAILED: src/gadgets/CMakeFiles/protobuf_generation_ALERTS generated/alexa/protobuf/alertsSetAlertDirective.pb.c generated/alexa/protobuf/alertsSetAlertDirectivePayload.pb.c generated/alexa/protobuf/alertsDeleteAlertDirective.pb.c generated/alexa/protobuf/alertsDeleteAlertDirectivePayload.pb.c
src\gadgets\CMakeFiles\protobuf_generation_ALERTS-c170e20.bat 8e08add4a8d905a9
Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 50, in <module>
from .proto import nanopb_pb2
ModuleNotFoundError: No module named '__main__.proto'; '__main__' is not a package

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\\nanopb_generator.py", line 71, in <module>
import proto.nanopb_pb2 as nanopb_pb2
File "%REPOSITORY_HOME_PATH%\tools\nanopb\nanopb-0.4.2-windows-x86\generator\proto\nanopb_pb2.py", line 9, in <module>
from google.protobuf import symbol_database as _symbol_database
File "C:\Python37\lib\site-packages\google\protobuf\symbol_database.py", line 189, in <module>
_DEFAULT = SymbolDatabase(pool=descriptor_pool.Default())
AttributeError: module 'google.protobuf.descriptor_pool' has no attribute 'Default'
--nanopb_out: protoc-gen-nanopb: Plugin failed with status code 1.
Batch file failed at line 3 with errorcode 1
[26/252] Building C object zephyr/CMakeFiles/zephyr.dir/lib/os/rb.c.obj
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: 'C:\Program Files\CMake\bin\cmake.EXE' --build '%REPOSITORY_HOME_PATH%\fw-nrfconnect-nrf\build'

%REPOSITORY_HOME_PATH%\fw-nrfconnect-nrf>