examples/espidf-arduino-blink build fails: unknown type name '_lock_t'

I followed the directions in platform-espressif32/examples/espidf-arduino-blink/README.md exactly, but the build failed with error: unknown type name '_lock_t' in lots of places.

Instead of using the zip file I also tired cloning https://github.com/platformio/platform-espressif32.git directly but the example failed the same way in both the master and develop branches.

The examples/arduino-blink builds fine.

I’m new to platformio and I’m trying to build a project that uses classic bluetooth which appears to need a tweak using menuconfig to build. Researching that issue lead me to the espidf-arduino-blink.

Here’s my build.log.

skip@Dell-7040:~/zips$ platformio --version
PlatformIO Core, version 5.2.3
skip@Dell-7040:~/zips$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04.1 LTS"
skip@Dell-7040:~/zips$

[maxgerhardt]

He already said

wiped my .platformio/packages directory and that fixed it.

Same as this person.

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