I confirmed with Linux SDK team, in Debian 24.12 tflite can be built successfully.
Probably your problem is caused by host environment.
Run the following commands for the first time to set up the build environment.
$ cd flexbuild
$ . setup.env (in host environment)
$ bld docker (create or attach to docker)
$ . setup.env (in docker environment)
$ bld host-dep (install host dependent packages)
Please provide your building error log if further assistance is needed.