cyrus-sasl build.sh error

[gnmmdk]

I compiled with reference to the official steps. https://github.com/MailCore/mailcore2/blob/master/build-android/README.md
Use ndk 20.0.5594570 to compile locally, openssl is 1.1.1k, and libsasl 2.1.27. The previous steps are OK until the script of build-android/dependencies/cyrus-sasl is compiled, and an error is reported:
/Users/kangjj/Android/mailcore2-build/libetpan/build-android/dependencies/cyrus-sasl/src/cyrus-sasl-2.1.27/build-android/jni/../../plugins/anonymous.c:55:10: fatal error:
'plugin_common.h' file not found
#include "plugin_common.h"
^~~~~~~~~~~~~~~~~
1 error generated.

How to solve the problem?