Update.

Author: imcarolwang

src/dotnet-svcutil/lib/src/CommandProcessorOptions.cs

@@ -627,7 +627,7 @@ private async Task ProcessReferencesOptionAsync(CancellationToken cancellationTo
                     {
                         for (int idx = this.References.Count - 1; idx >= 0; idx--)
                         {
-                            var selected = references.Where(x => this.References[idx].Name == x.Name).FirstOrDefault();
+                            var selected = references.Where(x => string.Equals(this.References[idx].Name, x.Name, StringComparison.OrdinalIgnoreCase)).FirstOrDefault();
                             if (selected != null)
                             {
                                 this.References[idx] = selected;

src/dotnet-svcutil/lib/src/Shared/Options/UpdateOptions.cs

@@ -97,16 +97,6 @@ public void MakePathsRelativeTo(DirectoryInfo optionsFileDirectory)
                     this.Inputs[idx] = new Uri(relPath, UriKind.Relative);
                 }
             }
-
-            //update referenced assembly path
-            for (int idx = 0; idx < this.References.Count; idx++)
-            {
-                var reference = this.References[idx];
-                if (reference.DependencyType.Equals(ProjectDependencyType.Binary))
-                {
-                    this.References[idx] = ProjectDependency.FromAssembly(reference.AssemblyName);
-                }
-            }
         }
 
         public void ResolveFullPathsFrom(DirectoryInfo optionsFileDirectory)

src/dotnet-svcutil/lib/src/Shared/ProjectDependency.cs

@@ -153,7 +153,7 @@ private ProjectDependency(string filePath = "", string packageName = "", string
 
             this.ReferenceIdentity = this.DependencyType == ProjectDependencyType.Package || this.DependencyType == ProjectDependencyType.Tool || !string.IsNullOrWhiteSpace(packageName) ?
                 string.Format(CultureInfo.InvariantCulture, "{0}, {{{1}, {2}}}", this.AssemblyName, this.Name, this.Version) :
-                this.FullPath;
+                this.AssemblyName;
 
             this.IsFramework = this.Name == NetCoreAppPackageID || this.Name == NetStandardLibraryPackageID;
         }