diff --git a/samples/AzCopyCore/AzCopyCore/AzCopyCore.csproj b/samples/AzCopyCore/AzCopyCore/AzCopyCore.csproj
index ae53bf9a84d..dd1bbc8eebb 100644
--- a/samples/AzCopyCore/AzCopyCore/AzCopyCore.csproj
+++ b/samples/AzCopyCore/AzCopyCore/AzCopyCore.csproj
@@ -3,9 +3,6 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.1</TargetFramework>
-	<!--
-    <RuntimeFrameworkVersion>2.1.0-preview2-26209-04</RuntimeFrameworkVersion>
-	-->
     <CoreFxPackageVersion>4.5.0-preview2-26213-06</CoreFxPackageVersion>
     <CoreFxLabPackageVersion>0.1.0-preview2-180213-4</CoreFxLabPackageVersion>
   </PropertyGroup>
@@ -22,7 +19,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.DotNet.ILCompiler" Version="1.0.0-alpha-26320-02" />
-    <PackageReference Include="System.Buffers.ReaderWriter" Version="0.1.0-preview2-180320-2" />
+    <PackageReference Include="System.IO.Pipelines" Version="4.5.0-preview3-26319-04" />
     <PackageReference Include="System.Memory" Version="4.5.0-preview3-26319-04" />
     <PackageReference Include="System.Threading.Tasks.Extensions" Version="4.5.0-preview3-26319-04" />
   </ItemGroup>
@@ -30,10 +27,10 @@
   <ItemGroup>
     <PackageReference Include="System.Azure.Experimental" Version="0.1.0-preview2-180320-2" />
     <PackageReference Include="System.Buffers.Experimental" Version="0.1.0-preview2-180320-2" />
+    <PackageReference Include="System.Buffers.ReaderWriter" Version="0.1.0-preview2-180320-2" />
     <PackageReference Include="System.Text.Http" Version="0.1.0-preview2-180320-2" />
     <PackageReference Include="System.Text.Http.Parser" Version="0.1.0-preview2-180320-2" />
     <PackageReference Include="System.Text.Utf8String" Version="0.1.0-preview2-180320-2" />
-    <PackageReference Include="System.IO.Pipelines" Version="4.5.0-preview3-26319-04" />
   </ItemGroup>
 
 </Project>
diff --git a/samples/AzCopyCore/AzCopyCore/Program.cs b/samples/AzCopyCore/AzCopyCore/Program.cs
index 44a127662fa..f8e25881ab0 100644
--- a/samples/AzCopyCore/AzCopyCore/Program.cs
+++ b/samples/AzCopyCore/AzCopyCore/Program.cs
@@ -35,7 +35,7 @@ static void Main(string[] args)
         ReadOnlySpan<char> destination = options.GetSpan("/Dest:");
 
         long before = GC.GetAllocatedBytesForCurrentThread();
-        var sw = Stopwatch.StartNew();
+        Stopwatch sw = Stopwatch.StartNew();
 
         // transfer from file system to storage
         if (destination.StartsWith("http://"))
@@ -80,7 +80,6 @@ static void TransferDirectoryToStorage(ReadOnlySpan<char> localDirectory, ReadOn
         if (options.Contains("/DestKey:"))
         {
             ReadOnlySpan<char> key = options["/DestKey:"];
-            var str = key.ToString();
             keyBytes = key.ComputeKeyBytes();
         }
         else if (options.Contains("/@:"))
@@ -103,7 +102,6 @@ static void TransferDirectoryToStorage(ReadOnlySpan<char> localDirectory, ReadOn
 
         using (var client = new StorageClient(keyBytes, account, host, 80, Log))
         {
-            //var files = new Files(directoryPath);
             foreach (string filepath in Directory.EnumerateFiles(directoryPath))
             {
                 // TODO: Use Path.Join when it becomes available