Hi.
Thanks for your suggestion.
We may came up with some tutorials for that, but not in a near future.
We have other projects lined up first.
Regards,
Sara

Hello, any news regarding ESP32S2 ?
I purchased your (excellent) Ebook on webservers, just to discover the projects do not work for ESP32S2.
Apparently, the library you use, ESPAsyncWebServer, doesn’t work for the S2.
I get 
undefined reference to `mbedtls_md5_starts’
Any idea ? Thanks
Jef

Hi.
Did you try the examples with a regular ESP32?
Are you using Vs Code or Arduino IDE?
Regards,
Sara

THANKS FOR YOUR VERY QUICK REPLY, IT SEEMS TO BE WORKING NOW !
I am using Arduino, your question regarding ESP32 helped me, I was getting the same error with pure ESP32.
I managed, with pain,to remove the 3 libraries (ESPAsyncWebServer, AsyncTCP & ESPAsyncTCP were placed twice on my disc, including one set under the /documents/Arduino/librairies and one in user//appdata/local/arduino15…..
And after installing up to date libraries from zip files, It works, both for ESP32 and ESP32S2
Thanks a lot
Jef

That’s great!
I’m glad you solved the problem.
If you need further help, you just need to open a new question in our forum.
Regards,
Sara

Hello Sara,
I’ve just updated to the latest libraries and now I am getting: “undefined reference to `mbedtls_md5_starts'”
I am using a AZ Delivery devkit v4 (ESP32) and VS code. I am sure it was working before.
I used the sensor readings example from the build-web-servers-ebook with slight modifications (only on the sensor side) but also other SW that is based on ESP async web server seems to fail.
Any idea where to look?
Best regards,
Roger
 
 

Just to add I use AsyncTCP 1.1.1, ESP Async WebServer 1.2.3

Hi.
To be honest, I’m not sure why that error happens.
It happened to me before and to other readers. The issue was solved by reinstalling IDE and libraries from scratch. I hope that fixes the issue.
Regards,
Sara

Hi Sara,
Thanks for your reply. I tried something different meanwhile.
I used ottowinter/ESPAsyncWebServer-esphome@^2.1.0 instead of ESP Async WebServer and it at least compiles without a problem. I haven’t tested functionality yet but my guess is that it will work.
I also did clean the complete workspace in VSCode but that didn’t help.
Best regards,
Roger
 

Did a complete reinstall of IDE including platformIO. It seems it is now working again.
At least thePWM slider web server example did compile and execute OK.
Best regards,
Roger
 

Great!
Let’s hope the problem is solved.
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

Hi Sara,
The problem came back again.
I found a way to solve it udating the library directly from github.
Best regards,
Roger
 

Great! Thanks for sharing that.
Regards,
Sara

I had the same issue and I had to add the following to my .ini file and it solved it:

lib_deps =
    https://github.com/me-no-dev/ESPAsyncWebServer
lib_ldf_mode = chain+

Thanks for sharing that solution. 
I’ll add that workaround in future projects in case the user has problems with the library.
Regards,
Sar

Unfortunately Jonathans solution comes with a drawback in my case.
The Build Filesystem option disappears from the project tasks using the changes in .ini file. Actually the whole Platform option disappears.

Hi Roger.
What is exaclty the issue you’re facing?
Regards,
Sara

Hi Sara,
The problem is that the whole Platform item is not present in platformio tab of VS-Code.
Normally you find commands like Build Filesystem Image, Program Size, Upload File System Image … in there.

Tried to include two screenshot but I am not sure it works.

Hi.
 
To include a screenshot, please upload your images to Google drive, or Imgur, or Dropbox, for example, and then share a link to the pictures.
 
Have you tried searching on the PlatformIO forum if there’s a similar issue?
For example, take a look at the following issues and see if some of the suggestions help: 

• https://community.platformio.org/t/platformio-toolbar-and-home-icon-not-showing-in-vscode/12334/5
• https://community.platformio.org/t/platformio-icon-not-show-in-my-vstudio-ide/21673

 
Let me know if this helps.
Regards,
Sara