Travis build fails

i have a linux appp that builds in Travis .
but after modifying the folder structure it is failing .
i don’t know what i am doing wrong ?

herer is the error

The command “make INSTALL_ROOT=appdir -j$(nproc) install ; find appdir/” exited with 1.
3.95s$ wget -c -nv “https://github.com/probonopd/linuxdeployqt/releases/download/continuous/linuxdeployqt-continuous-x86_64.AppImage
2018-06-02 04:01:16 URL:https://github-production-release-asset-2e65be.s3.amazonaws.com/67432158/de3a8494-5e9e-11e8-8e6c-eb4fec70ec3b?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIWNJYAX4CSVEH53A%2F20180602%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20180602T040112Z&X-Amz-Expires=300&X-Amz-Signature=42a1c65923c18462d982076bd1c6a34f8915e9aa9d883e7d262c69f1c74bd6b6&X-Amz-SignedHeaders=host&actor_id=0&response-content-disposition=attachment%3B%20filename%3Dlinuxdeployqt-continuous-x86_64.AppImage&response-content-type=application%2Foctet-stream [14612408/14612408] -> “linuxdeployqt-continuous-x86_64.AppImage” 1

here is the Travis page

and here is app GITHUBpage

Travis build fails