Travis CI fail, missing libs are in subdirectory

I’ve got a default .travis.yml file for libraries, but Travis is ignoring the libraries in a subdirectory.

language: python
python:
    - "2.7"

# Cache PlatformIO packages using Travis CI container-based infrastructure
sudo: false
cache:
    directories:
        - "~/.platformio"

env:
    - PLATFORMIO_CI_SRC=examples/example1/example1.ino
    - PLATFORMIO_CI_SRC=examples/example2/example2.ino

install:
    - pip install -U platformio

script:
    - platformio ci --board=d1_mini --board=esp01_1m --board=esp01 --lib="./src"

But Travis is ignoring the Helper classes which I stored in ./scr/Helpers and the builds fail.

Could you provide a link to a repository?

You can find the repo on github:

I believe it’s is fixed. I had an orphan .h/.cpp lib which was in the repo, but not included in the code.