I can’t build my project from last year on my new computer, but it does still build on the old machine: https://github.com/barafael/dodeca-blink
This also fails in CI, so it could be that this relates to a newer version of platformio, the compiler, or the linker?
On that old machine, what is the output of pio --version and pio platform show espressif32 on the CLI?
On old machine:
> pio --version:
PlatformIO Core, version 6.1.4
> pio platform show espressif32
WARNING: This command is deprecated and will be removed in the next releases.
Please use `pio pkg show` instead.
platformio/espressif32
Platform • 5.2.0 • Public • Published on Fri Sep 30 09:55:44 2022
Espressif Systems is a privately held fabless semiconductor company. They provide wireless communications and Wi-Fi chips which are widely used in mobile devices and the Internet of Things applications.
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Registry https://registry.platformio.org/platforms/platformio/espressif32
Homepage https://espressif.com/
Repository https://github.com/platformio/platform-espressif32.git
License Apache-2.0
Popularity 1
Stars 588
Examples 20
Installed Size 1.46MB
Dependencies 19
Compatible Frameworks arduino, espidf
Keywords dev-platform, wi-fi, bluetooth, xtensa, risc-v
--------------------- ----------------------------------------------------------------
Version Size Published
--------- -------- -------------------
5.2.0 293.90KB 2022-09-30 09:55:44
5.1.1 292.81KB 2022-08-26 13:21:05
5.1.0 293.46KB 2022-07-31 19:17:02
5.0.0 290.96KB 2022-06-30 14:56:44
4.4.0 293.64KB 2022-05-31 18:03:16
4.3.0 294.03KB 2022-05-20 17:31:55
4.2.0 291.41KB 2022-04-29 11:16:29
4.1.0 291.08KB 2022-04-21 13:47:06
4.0.0 290.99KB 2022-04-21 13:44:46
3.5.0 289.23KB 2022-01-28 13:18:31
3.4.0 290.02KB 2021-11-12 11:09:53
3.3.2 283.57KB 2021-08-31 13:44:07
3.3.1 283.75KB 2021-07-26 18:19:16
3.3.0 283.61KB 2021-06-30 11:40:13
3.2.1 283.70KB 2021-05-31 13:46:30
3.2.0 283.25KB 2021-03-29 12:33:46
3.1.1 283.28KB 2021-03-18 22:02:04
3.1.0 283.15KB 2021-02-26 13:42:10
3.0.0 278.80KB 2021-01-29 19:29:52
2.1.0 274.87KB 2020-12-02 14:45:17
2.0.0 273.40KB 2020-09-07 12:01:34
1.12.4 255.12KB 2020-06-17 10:41:53
1.12.3 254.88KB 2020-06-11 10:54:22
1.12.2 254.64KB 2020-05-25 13:15:26
1.12.1 255.42KB 2020-04-28 12:08:20
1.12.0 254.02KB 2020-03-23 15:12:35
1.11.2 199.07KB 2020-02-12 21:53:38
1.11.1 198.20KB 2019-11-01 16:47:34
1.11.0 197.99KB 2019-10-04 18:14:39
1.10.0 197.81KB 2019-09-18 15:52:55
1.9.0 116.43KB 2019-06-28 12:26:54
1.8.0 97.71KB 2019-04-19 10:25:30
1.7.0 90.48KB 2019-02-22 17:06:20
1.6.0 90.30KB 2019-01-11 12:27:40
1.5.0 89.31KB 2018-11-05 16:29:09
1.4.0 62.77KB 2018-10-01 13:28:27
1.3.0 51.99KB 2018-08-13 15:05:07
1.2.0 51.80KB 2018-07-30 18:03:16
1.1.2 37.98KB 2018-07-06 12:20:41
1.1.1 37.99KB 2018-07-04 22:05:20
1.1.0 38.00KB 2018-07-02 13:18:41
1.0.2 37.85KB 2018-06-04 15:24:27
1.0.1 37.67KB 2018-05-31 18:40:50
1.0.0 37.60KB 2018-05-30 16:28:06
0.12.0 31.45KB 2018-02-08 14:17:46
0.11.1 31.12KB 2018-02-08 14:16:34
0.11.0 31.32KB 2017-11-27 23:23:43
0.10.0 30.78KB 2017-09-05 13:25:45
0.9.1 30.32KB 2017-08-22 13:47:24
0.9.0 30.31KB 2017-08-16 15:02:00
0.8.0 29.68KB 2017-08-07 12:35:36
0.7.5 29.30KB 2017-07-04 16:26:22
0.7.0 28.12KB 2017-04-12 16:12:02
0.6.0 27.96KB 2017-02-22 14:21:25
0.5.0 18.50KB 2017-01-27 19:39:32
0.4.0 18.65KB 2016-12-24 14:51:15
0.3.0 17.46KB 2016-12-10 15:47:57
0.2.0 16.09KB 2016-12-07 19:33:27
0.1.0 16.28KB 2016-11-18 15:15:37
On new machine, fresh install. That’s a lead.
Well but it definitely doesn’t compile correctly with that version.
Just going by the date of the project, I tried the last platform-espressif32 version that was using the Arduino-ESP32 1.0.6 core, which per releases is 3.5.0, and it compiled immediately. So just set
platform = espressif32@3.5.0
instead of
platform = espressif32
in both esp32 environments.
On the current versions, the RTTI (runtime type information) flags do not seem to be correctly processed, so that build_unflags = [..] -fno-rtti doesn’t have the desired effect. There were previously some discussion on this in Force RTTI from library?. After a short round of trying though, I was unable to get that to compile with the extra_script.
For stability reasons, you’ll always want to pin the platform version like shown above.
1 Like
Thanks a lot, there’s a lesson to learn here 
It works!
Probably, it would make sense to update the version at some point, but I’m certainly happy with this for now.
Somebody on reddit helped me find the root cause. espressif32 includes their own BluetoothSerial.{cpp/hpp} now, which caused the conflict with the types from mbed.
The solution was to set the
lib_ldf_mode = deep
and then remove the mbed dependency, after which everything worked flawlessly.