Response status code does not indicate success: 500 (Internal Server Error).

test/isn.tests/PushTest.cs

@@ -57,10 +57,10 @@ dataTable.Rows.Add(dataRow);
             Assert.NotNull(vm.Resources);
         }
          [Fact]
-        public async Task TestPush()
+        public void TestPush()
         {
               Program.LoadConfig();
-              var report = await Program.PushPkgAsync(new string[] { "bin/Debug/isn.1.0.1.nupkg" });
+              var report =  Program.PushPkg(new string[] { "/home/paul/Nupkgs/Yavsc.Abstract.1.0.8.nupkg" });
         }
         
          [Fact]

test/isn.tests/isn.tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6</TargetFrameworks>
+    <TargetFrameworks>netcoreapp2.1</TargetFrameworks>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>