Is there a api or some thing that I can force unity to regenerate .csproj and .sln? including package .csproj for Entitiies or Collections The default behavior of csproj generation is like it only update thoese csproj that has change, adding or removing source file. But if I delete the csproj itself for some reason, it is not considered dirty. so even if all .csproj and .sln is deleted. by double clicking a source Unity wont make new ones. By using Open in c# Project from context menue It generates only .csproj for assembly define in Asset folder, no including package assembly. My Preferences->External Tools-> Generate all .csproj files is Checked. And the reason, I remove .csproj files is a TestRuner+Burst bug keep corrupting my .csproj. I am trying to figure out why. But I really want to know if I can force unity to regenerate ALL .csproj by some UnityEditor Api or so.