nodemcu_with_led - compilation errors

[PappZso]

Hi all!

I'm trying to use wakaamaNode library (latest version, freshly downloaded) on my NodeMCU board (based on esp8266, https://docs.zerynth.com/latest/official/board.zerynth.nodemcu_esp32/docs/index.html ). I use PlatformIO as development tool (latest version, freshly re-installed).

I tried to upload a few simple esp8266 sketches (WiFiScan, WiFiAccesspoint ) and they worked on the same board, so the board is allright.

Next step: I wanted to try the _nodemcu_withled example code ( https://github.com/Openhab-Nodes/wakaamaNode/blob/master/examples/nodemcu_with_led/src/main.cpp ) from wakaamaNode as a beginning. I assumed that it should work without any modifications on my nodemcu board. But when I try to upload it with PlatformIO, I get two compilation errors, see below.

Processing nodemcu (platform: espressif8266; board: nodemcu; framework: arduino)
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Verbose mode can be enabled via `-v, --verbose` option
CONFIGURATION: https://docs.platformio.org/page/boards/espressif8266/nodemcu.html
PLATFORM: Espressif 8266 > NodeMCU 0.9 (ESP-12 Module)
HARDWARE: ESP8266 80MHz 80KB RAM (4MB Flash)
Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF MODES: FINDER(chain) COMPATIBILITY(soft)
Collected 28 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <WakaamaNode> 1.0.2
|-- <ESP8266httpUpdate> 1.3
|   |-- <ESP8266HTTPClient> 1.2
|   |   |-- <ESP8266WiFi> 1.0
|   |   |   |-- <WakaamaNode> 1.0.2
|   |-- <ESP8266WiFi> 1.0
|   |   |-- <WakaamaNode> 1.0.2
|-- <ArduinoOTA> 1.0
|   |-- <ESP8266mDNS> 1.2
|   |   |-- <WakaamaNode> 1.0.2
|   |   |-- <ESP8266WiFi> 1.0
|   |   |   |-- <WakaamaNode> 1.0.2
|   |-- <ESP8266WiFi> 1.0
|   |   |-- <WakaamaNode> 1.0.2
|-- <ESP8266WiFi> 1.0
|   |-- <WakaamaNode> 1.0.2

warning: Ignoring missing SConscript 'extra.py'
File "C:\users\epapzso\.platformio\penv\lib\site-packages\platformio\builder\main.py", line 175, in <module>
Compiling .pioenvs\nodemcu\src\examples\nodemcu_with_led\src\main.cpp.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\cipher.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\cipher_wrap.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\cmac.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ctr_drbg.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\debug.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\des.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\dhm.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ecdh.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ecdsa.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ecjpake.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ecp.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\ecp_curves.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\entropy.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\entropy_poll.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\error.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\gcm.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\havege.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\hmac_drbg.c.o
Compiling .pioenvs\nodemcu\src\src\network\mbedtls\library\md.c.o
examples\nodemcu_with_led\src\main.cpp: In function 'void loop()':
examples\nodemcu_with_led\src\main.cpp:123:37: error: no matching function for call to 'LwM2MConnect::process(timeval*)'
int result = context.process(&tv);
^
examples\nodemcu_with_led\src\main.cpp:123:37: note: candidate is:
In file included from examples\nodemcu_with_led\src\main.cpp:16:0:
./src/include/lwm2m/connect.h:48:10: note: void LwM2MConnect::process()
void process();
^
./src/include/lwm2m/connect.h:48:10: note:   candidate expects 0 arguments, 1 provided
examples\nodemcu_with_led\src\main.cpp:129:13: error: 'class LwM2MConnect' has no member named 'watch_and_reconnect'
context.watch_and_reconnect(&tv, 5);
^
*** [.pioenvs\nodemcu\src\examples\nodemcu_with_led\src\main.cpp.o] Error 1
============================================================================================================== [ERROR] Took 5.41 seconds ==============================================================================================================

I've read the documentation too, especially the Connection API, as my problem is related to that in my opinion. I've noticed, that the connect.h and connect.cpp files don't match the Connection API documentation.

According to Connection API docs ( https://openhab-nodes.github.io/wakaamaNode/api/connection-api/#connection-c-api ) the problematical functions should look like

int process(struct timeval* next_event); and void watch_and_reconnect(struct timeval* next_event, int reconnectTime);

In the downloaded wakaamaNode library these functions look like: 'void process();' and watch_and_reconnect is completely missing from connect.h and connect.cpp, so no wonder I get these compilation error.

Am I doing something wrong, could you please explain?

Thanks for reading, and any help is appreciated! :)

[davidgraeff]

I'll have a look this weekend. Continuous integration is also failing at the moment.

There is one more issue: This project is using a 2018 version of wakaama. lwm2m has evolved in the meantime and wakaama adapted its code structure. I'll see if I can update.

[PappZso]

Thank you for replying so fast! I'm waiting patiently :)

[PappZso]

Any news since then? Did you have the time to check it?

[davidgraeff]

Unfortunately not yet. I suggest to use wakaama directly for the moment until I find time to solve this.

[PappZso]

Allright, no problem I just wanted to know :)

Wakaama isn't really appropriate for me, since it is a Linux application, but I would like to use LwM2M on an ESP-based board (like NodeMCU) or Arduino.

[r5hjk]

Same Issue in Tag 1.0:

src/main.cpp: In function 'void loop()':
src/main.cpp:105:37: error: no matching function for call to 'LwM2MConnect::process(timeval*)'
int result = context.process(&tv);
^
src/main.cpp:105:37: note: candidate is:
In file included from src/main.cpp:15:0:
/Users/hjk/.platformio/lib/WakaamaNode_ID2964/src/include/lwm2m/connect.h:48:10: note: void LwM2MConnect::process()
void process();
^
/Users/hjk/.platformio/lib/WakaamaNode_ID2964/src/include/lwm2m/connect.h:48:10: note:   candidate expects 0 arguments, 1 provided
*** [.pioenvs/heltec_wifi_kit_8/src/main.cpp.o] Error 1

Can you estimate, when you have time to take a look?

[hasikp1]

@davidgraeff Any updates on this?

[FlorSanders]

Seems like this issue is still persisting, at least that's what's holding me back from compiling as well. Is there still any interest in maintaining this repo/fixing this issue?

[davidgraeff]

The lwm2m wakaama library has evolved and changed their API too much. I'm archiving this project.