As I see on your screenshot you try to install **Sitecore 9.0** with **Solr 7.2.1**. It is not supported *(Sitecore 9.0 only supports Solr 6.6.1-6.6.3)*. 
[![enter image description here][1]][1]

See solr compatibility table here https://kb.sitecore.net/articles/227897

You need **Sitecore 9.1.0**:

[![enter image description here][2]][2]


  [1]: https://i.sstatic.net/NGdYR.png
  [2]: https://i.sstatic.net/IedfP.png