diff --git a/src/dotnet-ef/Project.cs b/src/dotnet-ef/Project.cs
index ee15537fe52..c894ac9d745 100644
--- a/src/dotnet-ef/Project.cs
+++ b/src/dotnet-ef/Project.cs
@@ -99,10 +99,14 @@ public static Project FromFile(
 
         var designAssembly = runtimeCopyLocalItems
             .Select(i => i["FullPath"])
-            .FirstOrDefault(i => i.Contains("Microsoft.EntityFrameworkCore.Design", StringComparison.InvariantCulture));
+            .FirstOrDefault(i => i.Contains("Microsoft.EntityFrameworkCore.Design", StringComparison.InvariantCulture))
+            ?.Replace('\\', Path.DirectorySeparatorChar);
         var properties = metadata.Properties;
 
-        var outputPath = Path.GetFullPath(Path.Combine(properties[nameof(ProjectDir)]!, properties[nameof(OutputPath)]!));
+        var normalizedOutputPath = properties[nameof(OutputPath)]!.Replace('\\', Path.DirectorySeparatorChar);
+        var normalizedProjectDir = properties[nameof(ProjectDir)]!.Replace('\\', Path.DirectorySeparatorChar);
+        var normalizedProjectAssetsFile = properties[nameof(ProjectAssetsFile)]?.Replace('\\', Path.DirectorySeparatorChar);
+        var outputPath = Path.GetFullPath(Path.Combine(normalizedProjectDir, normalizedOutputPath));
         CopyBuildHost(runtimeCopyLocalItems, outputPath);
 
         var platformTarget = properties[nameof(PlatformTarget)];
@@ -116,10 +120,10 @@ public static Project FromFile(
             AssemblyName = properties[nameof(AssemblyName)],
             DesignAssembly = designAssembly,
             Language = properties[nameof(Language)],
-            OutputPath = properties[nameof(OutputPath)],
+            OutputPath = normalizedOutputPath,
             PlatformTarget = platformTarget,
-            ProjectAssetsFile = properties[nameof(ProjectAssetsFile)],
-            ProjectDir = properties[nameof(ProjectDir)],
+            ProjectAssetsFile = normalizedProjectAssetsFile,
+            ProjectDir = normalizedProjectDir,
             RootNamespace = properties[nameof(RootNamespace)],
             RuntimeFrameworkVersion = properties[nameof(RuntimeFrameworkVersion)],
             TargetFileName = properties[nameof(TargetFileName)],
diff --git a/src/dotnet-ef/RootCommand.cs b/src/dotnet-ef/RootCommand.cs
index 686ea398b30..5561d1fb116 100644
--- a/src/dotnet-ef/RootCommand.cs
+++ b/src/dotnet-ef/RootCommand.cs
@@ -95,8 +95,7 @@ protected override int Execute(string[] _)
             Path.GetDirectoryName(typeof(Program).Assembly.Location)!,
             "tools");
 
-        var targetDir = Path.GetFullPath(Path.Combine(startupProject.ProjectDir!, startupProject.OutputPath!))
-            .Replace('\\', Path.DirectorySeparatorChar);
+        var targetDir = Path.GetFullPath(Path.Combine(startupProject.ProjectDir!, startupProject.OutputPath!));
         var targetPath = Path.Combine(targetDir, project.TargetFileName!);
         var startupTargetPath = Path.Combine(targetDir, startupProject.TargetFileName!);
         var depsFile = Path.Combine(