Problem using Husarnet in ESP32-Cam with Platformio

Help
#1

Hi!
I’m trying to use husarnet for my AI Thinker ESP32-Cam project in VSCode using platformio. I tried to follow this example: https://github.com/husarnet/husarnet-esp32/tree/master/examples/simple-webcam

But, it always gave these error:
c:\users\xxx\.platformio\packages\toolchain-xtensa-esp32\xtensa-esp32-elf\include\c++\8.4.0\xtensa-esp32-elf\esp32-psram\no-rtti\bits\gthr-default.h:781:12: error: ‘pthread_mutex_timedlock’ was not declared in this scope
and
Cannot find “C:\Users\xxx\.platformio\packages\framework-arduinoespressif32\tools\sdk\include\nimble”.
Cannot find “C:\Users\xxx\.platformio\packages\framework-arduinoespressif32\tools\sdk\include\husarnet”.

I also try to manually use Arduino IDE but i got either library error such as:
cannot found lwip_connect_r (and anything in lwip with _r)
or error with the compiler

I want to use ESP32-cam to stream image (video), but can also be accessed using different wifi without using another device (like raspy) beside esp32-cam. And after some search i found that it is possible using husarnet, but because i’m still learning in this programming topic so i can only rely to the example first.

Any help will be very much appreciated, Thanks!

#2

Hi,

I am also experiencing the same, using the Firebeetle ESP32-E. Interestingly enough - I tested the functionality on the same board on 27 March 2022, and it all worked perfectly. Now I’m experiencing the exact same issue - you described.

What I have found is that when I comment out the platform_packages (see below) in the platformio.ini file - the pthread_mutex_timedlock error goes away - only to end up with one error > src/main.cpp:3:10: fatal error: Husarnet.h: No such file or directory

platformio.ini

platform_packages = framework-arduinoespressif32 @ https://github.com/husarnet/arduino-esp32/releases/download/1.0.4-1/arduino-husarnet-esp32.zip

To test - I’m using the below example:

Can the tech team from Husarnet please advise?

1 Like
#3

Just to add to my update - I also tried the suggestion in https://community.platformio.org/t/platformio-is-broken-for-any-esp32/26580/8, but didn’t solve the problem.

#4

Just a gut feeling, after doing some more investigation - I think that the issue came in when the toolchain xtensa version was upgraded. When I started off with VS Platormio on 27 March 2022, the toolchain xtensa version was 2.50200.9 and the Husarnet functionality with the ESP32 worked.

I see that the toolchain xtensa was upgraded to 8.4.0+2021r2-patch3 on 26 April 2022.

Could this be the reason for the below errors?

c:\users\xxx.platformio\packages\toolchain-xtensa-esp32\xtensa-esp32-elf\include\c++\8.4.0\xtensa-esp32-elf\esp32-psram\no-rtti\bits\gthr-default.h:781:12: error: ‘pthread_mutex_timedlock’ was not declared in this scope?

#5

Just to add, I am experiencing the same problem with husarnet and nimble errors quoted above with the simple basic example at the bottom of https://husarnet.com/docs on the ESP32 tab.

If any have solved the error I’d appreciate if you can drop a hint.

Thanks