diff --git a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.cs b/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.cs
index 73bd82e0fe9c..9bd4d8d2cb53 100644
--- a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.cs
+++ b/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.cs
@@ -5,6 +5,8 @@
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.IO;
+using System.Reflection.Metadata;
+using System.Reflection.PortableExecutable;
 
 namespace Microsoft.NET.Build.Tasks.ConflictResolution
 {
@@ -30,5 +32,32 @@ public static Version TryGetAssemblyVersion(string sourcePath)
             return s_assemblyExtensions.Contains(extension) ? GetAssemblyVersion(sourcePath) : null;
         }
 
+        private static Version GetAssemblyVersion(string sourcePath)
+        {
+            using (var assemblyStream = new FileStream(sourcePath, FileMode.Open, FileAccess.Read, FileShare.Delete | FileShare.Read))
+            {
+                Version result = null;
+                try
+                {
+                    using (PEReader peReader = new PEReader(assemblyStream, PEStreamOptions.LeaveOpen))
+                    {
+                        if (peReader.HasMetadata)
+                        {
+                            MetadataReader reader = peReader.GetMetadataReader();
+                            if (reader.IsAssembly)
+                            {
+                                result = reader.GetAssemblyDefinition().Version;
+                            }
+                        }
+                    }
+                }
+                catch (BadImageFormatException)
+                {
+                    // not a PE
+                }
+
+                return result;
+            }
+        }
     }
 }
diff --git a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.net45.cs b/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.net45.cs
deleted file mode 100644
index 8419c4c36d83..000000000000
--- a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.net45.cs
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved.
-// Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-#if NET46
-
-using System;
-using System.Reflection;
-
-namespace Microsoft.NET.Build.Tasks.ConflictResolution
-{
-    static partial class FileUtilities
-    {
-        private static Version GetAssemblyVersion(string sourcePath)
-        {
-            try
-            {
-                return AssemblyName.GetAssemblyName(sourcePath)?.Version;
-            }
-            catch(BadImageFormatException)
-            {
-                return null;
-            }
-        }
-    }
-}
-
-#endif
\ No newline at end of file
diff --git a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.netstandard.cs b/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.netstandard.cs
deleted file mode 100644
index 22c16a588ba6..000000000000
--- a/src/Tasks/Microsoft.NET.Build.Tasks/ConflictResolution/FileUtilities.netstandard.cs
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) .NET Foundation and contributors. All rights reserved.
-// Licensed under the MIT license. See LICENSE file in the project root for full license information.
-
-#if NETCOREAPP1_0
-
-using System;
-using System.IO;
-using System.Reflection.Metadata;
-using System.Reflection.PortableExecutable;
-
-namespace Microsoft.NET.Build.Tasks.ConflictResolution
-{
-    static partial class FileUtilities
-    {
-        private static Version GetAssemblyVersion(string sourcePath)
-        {
-            using (var assemblyStream = new FileStream(sourcePath, FileMode.Open, FileAccess.Read, FileShare.Delete | FileShare.Read))
-            {
-                Version result = null;
-                try
-                {
-                    using (PEReader peReader = new PEReader(assemblyStream, PEStreamOptions.LeaveOpen))
-                    {
-                        if (peReader.HasMetadata)
-                        {
-                            MetadataReader reader = peReader.GetMetadataReader();
-                            if (reader.IsAssembly)
-                            {
-                                result = reader.GetAssemblyDefinition().Version;
-                            }
-                        }
-                    }
-                }
-                catch (BadImageFormatException)
-                {
-                    // not a PE
-                }
-
-                return result;
-            }
-        }
-    }
-}
-
-#endif
\ No newline at end of file
diff --git a/src/Tasks/Microsoft.NET.Build.Tasks/Microsoft.NET.Build.Tasks.csproj b/src/Tasks/Microsoft.NET.Build.Tasks/Microsoft.NET.Build.Tasks.csproj
index 0919caa27a48..10c34be98ed3 100644
--- a/src/Tasks/Microsoft.NET.Build.Tasks/Microsoft.NET.Build.Tasks.csproj
+++ b/src/Tasks/Microsoft.NET.Build.Tasks/Microsoft.NET.Build.Tasks.csproj
@@ -35,7 +35,7 @@
       <Version>$(MsBuildPackagesVersion)</Version>
       <ExcludeAssets>Runtime</ExcludeAssets>
     </PackageReference>
-    <PackageReference Include="System.Reflection.Metadata" Version="$(SystemReflectionMetadataVersion)" Condition=" '$(TargetFramework)' == 'netcoreapp1.0' " />
+    <PackageReference Include="System.Reflection.Metadata" Version="$(SystemReflectionMetadataVersion)" />
 
     <PackageReference Include="System.Diagnostics.FileVersionInfo" Version="4.0.0" Condition=" '$(TargetFramework)' == 'netcoreapp1.0' " />
   </ItemGroup>