I guess it is required now that it does multi-target, but I cannot test it.

fredericDelaporte · fredericDelaporte · commit 4ab216a53e7c · 2018-03-20T18:21:30.000+01:00
diff --git a/AsyncGenerator.yml b/AsyncGenerator.yml
@@ -1,5 +1,6 @@
 ﻿projects:
 - filePath: CoreMemoryCache\NHibernate.Caches.CoreMemoryCache\NHibernate.Caches.CoreMemoryCache.csproj
+  targetFramework: netstandard2.0
   concurrentRun: true
   applyChanges: true
   analyzation:
