diff --git a/appveyor.yml b/appveyor.yml
index d5e2bda..75bac98 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,6 +3,7 @@ skip_tags: true
 image: Visual Studio 2015
 configuration: Release
 install:
+  - mklink /J Data "test/Mime-Detective.Tests/Data"
   - ps: mkdir -Force ".\build\" | Out-Null
   - ps: Invoke-WebRequest "https://raw.githubusercontent.com/dotnet/cli/rel/1.0.0-preview2/scripts/obtain/dotnet-install.ps1" -OutFile ".\build\installcli.ps1"
   - ps: $env:DOTNET_INSTALL_DIR = "$pwd\.dotnetcli"
diff --git a/src/GenericMvc.Test.Library/Repository/IRepositoryTests.cs b/src/GenericMvc.Test.Library/Repository/IRepositoryTests.cs
index 68b612e..4fa66cc 100644
--- a/src/GenericMvc.Test.Library/Repository/IRepositoryTests.cs
+++ b/src/GenericMvc.Test.Library/Repository/IRepositoryTests.cs
@@ -305,7 +305,7 @@ public virtual async Task Update()
 		}
 
 		[Fact]
-		public virtual async Task UpdateRange()
+		public virtual Task UpdateRange()
 		{
 			foreach (var range in _ranges)
 			{
@@ -329,6 +329,8 @@ public virtual async Task UpdateRange()
 
 				//_DataToCleanUp.AddRange(createdRangeX);
 			}
+
+			return Task.FromResult<object>(null);
 		}
 
 		/* to do place in decendant class
diff --git a/src/GenericMvc.Test.Library/project.json b/src/GenericMvc.Test.Library/project.json
index 35f5d20..5fbe0e5 100644
--- a/src/GenericMvc.Test.Library/project.json
+++ b/src/GenericMvc.Test.Library/project.json
@@ -16,7 +16,6 @@
     "GenericMvc": { "target": "project" }
   },
   "frameworks": {
-    //"net4.6": { },
     "netstandard1.6": {
       "imports": [
         "dnxcore50",
diff --git a/src/GenericMvc/Repositories/FileRepository.cs b/src/GenericMvc/Repositories/FileRepository.cs
index 2b49873..9ba30b2 100644
--- a/src/GenericMvc/Repositories/FileRepository.cs
+++ b/src/GenericMvc/Repositories/FileRepository.cs
@@ -74,16 +74,12 @@ public FileRepository(string rootFolder, bool includeNestedDirectories = false)
 			if (rootFolder != null)
 			{
 				//check if folder exists here
-				if (System.IO.Directory.Exists(rootFolder))
-				{
-					this.RootFolder = rootFolder;
+				if (!System.IO.Directory.Exists(rootFolder))
+					throw new System.IO.DirectoryNotFoundException(rootFolder);
 
-					this._directoryInfo = new System.IO.DirectoryInfo(rootFolder);
-				}
-				else
-				{
-					throw new ArgumentException(rootFolder);
-				}
+				this.RootFolder = rootFolder;
+
+				this._directoryInfo = new System.IO.DirectoryInfo(rootFolder);
 			}
 			else
 			{
@@ -101,7 +97,7 @@ private Task<DataFile> FileInitSwitch(DataFile entity)
 			switch (DefaultLoadingSettings)
 			{
 				case FileLoading.JustFileInfo:
-					return Task.FromResult(entity.Initialize(path:""));
+					return Task.FromResult(entity.Initialize(path: ""));
 
 				case FileLoading.WithMime:
 					return entity.Initialize(false, FileEncodingType);
@@ -110,7 +106,7 @@ private Task<DataFile> FileInitSwitch(DataFile entity)
 					return entity.Initialize(true, FileEncodingType);
 
 				default:
-					return Task.FromResult(entity.Initialize(path:""));
+					return Task.FromResult(entity.Initialize(path: ""));
 			}
 		}
 
@@ -254,7 +250,7 @@ private async Task createFile(DataFile entity)
 				}
 				else
 				{
-					throw new System.IO.IOException("Cannot write to file: " + entity.Name);
+					throw new System.IO.IOException($"Cannot write to file: {entity.Name}, {entity.Id}");
 				}
 			}
 		}
@@ -267,26 +263,18 @@ private Exception checkFileForUpdate(DataFile file)
 				//var dirInfo = new System.IO.DirectoryInfo(file.ContainingFolder);
 
 				if (_directoryInfo.GetFiles(file.Name).Count() == 1)
-				{
 					return null;
-				}
 				else
-				{
-					return new System.IO.IOException("File does not Exist");
-				}
+					return new System.IO.FileNotFoundException($"{file.Name} does net exist", file.Id);
 			}
 			else
-			{
 				return new ArgumentNullException(nameof(file), "File Data is Null");
-			}
 		}
 
 		private async Task updateFile(DataFile entity)
 		{
 			if (entity._fileInfo == null)
-			{
-				entity.Initialize(path:"");
-			}
+				entity.Initialize(path: "");
 
 			//if (System.IO.Directory.Exists(ContainingFolder) && this._fileInfo.Exists)
 
@@ -569,7 +557,7 @@ public Task<bool> Delete(DataFile entity)
 				{
 					if (entity._fileInfo == null)
 					{
-						entity.Initialize(path:"");
+						entity.Initialize(path: "");
 					}
 
 					entity._fileInfo.Delete();
diff --git a/src/GenericMvc/project.json b/src/GenericMvc/project.json
index ed8311c..388d9f2 100644
--- a/src/GenericMvc/project.json
+++ b/src/GenericMvc/project.json
@@ -52,7 +52,6 @@
   },
 
   "frameworks": {
-    //"net4.6": {},
     "netstandard1.6": {
       "imports": [
         "portable-net451+win8"
diff --git a/test/GenericMvc.Tests/project.json b/test/GenericMvc.Tests/project.json
index 68f722c..1f12707 100644
--- a/test/GenericMvc.Tests/project.json
+++ b/test/GenericMvc.Tests/project.json
@@ -20,7 +20,6 @@
     "GenericMvc.Test.Library": { "target": "project" }
   },
   "frameworks": {
-    //"net4.6": {},
     "netcoreapp1.0": {
       "define": [ "ASYNCLOCAL" ],
       "dependencies": {
diff --git a/test/GenericMvc.Tests/project.lock.json b/test/GenericMvc.Tests/project.lock.json
index 2764fd0..8cabbaa 100644
--- a/test/GenericMvc.Tests/project.lock.json
+++ b/test/GenericMvc.Tests/project.lock.json
@@ -4313,7 +4313,7 @@
         "framework": ".NETStandard,Version=v1.6",
         "dependencies": {
           "GenFu": "1.2.1",
-          "GenericMvc": "1.0.0",
+          "GenericMvc": "(, )",
           "Microsoft.AspNetCore.TestHost": "1.1.0",
           "Microsoft.EntityFrameworkCore.InMemory": "1.1.0",
           "Microsoft.EntityFrameworkCore.SqlServer": "1.1.0",