ESP32 Thing compile errors on BLE sketches

Development Boards Arduino
1

I’m programming the ESP32 Thing in Arduino IDE 2.0.0, and I’m trying to implement BLE, but I get compile errors with BLE sketches. I’ve attached the errors text file.

A randomly selected non BLE ESP32 Example sketch compiles and downloads without errors. The example sketch tested was:

Examples\Examples for Sparkfun ESP32 Thing\ESP32\HallSensor

But when I try to compile an ESP32 Example BLE sketch such as:

Examples\Examples for Sparkfun ESP32 Thing\ESP32 BLE Arduino\BLE_Scan, I get compile errors as show in the attached text file.

I tried reinstalling the IDE and it didn’t help. I also get the same errors using the Arduino 1.8.12 IDE.

I can’t tell if this is a library file path issue, or an issue with the Sparkfun libraries, or what. I Googled this issue and searched the forum, but didn’t find anything that solved my problem.

Can you tell what I need to do to correct this?

ESP32 Thing BLE sketch compile errors.txt (4.4 KB)

2

I haven’t seen that before, but almost every time I have a compile error for esp32 it’s because arduino has gotten the board definitions mixed up somehow; try wiping the board def folder like so https://support.arduino.cc/hc/en-us/art … rduino-IDE (delete the add’l files folder and re-install the board definitions) and try again

3

First of all, thanks for the reply.

I followed the link you gave. They mention “removing additional files” and you said “delete the add’l files folder”, but I don’t have an “additional files” folder. Are you referring to the “libraries” folder? My libraries folder has 51 subfolders in it. Maybe that’s part of my problem.

Thanks.

4

Yep…just wipe it all and reinstall as needed is usually the fastest way to get it going again…I’ve had to do it 3-4x per year lol

5

I will delete the library files this weekend and try it all again. Thanks.

6

You were right. I emptied the libraries folder, reinstalled the ESP32 libraries upon startup of the IDE (2.0.1), and now the ESP32 apps compile no problem. I guess years of accumulating library files somehow got things screwed up. Thanks so much for the advice!