I built a package that worked fine on OpenWRT 15, it is a simple resource package that contains scripts (that do basic setup) and some files (public keys, etc). It is basically a setup package.
When I try to install on OpenWrt 18 I get "Malformed package file". I have read the Whole package building page but I am still not sure what I need to do the " BuildPackage defines" seems to be the closest I can find to how my package was setup, but they do not mention a Packages/control file.
Can someone point me in the right direction, or refer me to a more comprehensible documentation, or an example of a package as described but that works on OpenWRT 18.