Error in building from docker file

[gpproton]

Nginx could not be built sucessfully.

dpkg-gencontrol: warning: File::FcntlLock not available; using flock which is not NFS-safe dpkg-gencontrol: warning: File::FcntlLock not available; using flock which is not NFS-safe dh_md5sums -a dh_builddeb -pnginx -pnginx-dbg dpkg-deb: building package 'nginx' in '../nginx_1.18.0-2~xenial_amd64.deb'. dpkg-deb: building package 'nginx-dbg' in '../nginx-dbg_1.18.0-2~xenial_amd64.deb'. dpkg-genchanges -b >../nginx_1.18.0-2~xenial_amd64.changes dpkg-genchanges: binary-only upload (no source code included) dpkg-source --after-build nginx-1.18.0 dpkg-buildpackage: binary-only upload (no source included) dpkg: error processing archive nginx_1.18.0-1~xenial_amd64.deb (--install): cannot access archive: No such file or directory Errors were encountered while processing: nginx_1.18.0-1~xenial_amd64.deb