the Microsoft.NETCore.App dep is for console app, use NETStandard.Library

Author: enricosada

src/fsharp/FSharp.Compiler.Service.netcore/project.json

@@ -280,12 +280,14 @@
     ]
   },
   "dependencies": {
-    "Microsoft.NETCore.App": {
-      "type": "platform",
-      "version": "1.0.0-rc2-3002702"
-    },
+    "NETStandard.Library": "1.5.0-rc2-24027",
     "System.Diagnostics.TraceSource": "4.0.0-rc2-*",
     "Microsoft.FSharp.Core.netcore": "1.0.0-alpha-*",
+    "System.Collections.Immutable": "1.2.0-rc2-24027",
+    "System.Security.Cryptography.Algorithms": "4.1.0-rc2-24027",
+    "System.Security.Cryptography.Primitives": "4.0.0-rc2-24027",
+    "System.Reflection.Metadata": "1.3.0-rc2-24027",
+    "System.Diagnostics.Process": "4.1.0-rc2-24027"
   },
   "tools": {
     "dotnet-fssrgen": "3.0.1",