diff --git a/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.sln b/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.sln
index 09ba921d5..667b5cf3a 100644
--- a/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.sln
+++ b/BuildTools/AutoUpdateBuilder/AutoUpdateBuilder.sln
@@ -19,6 +19,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.License", "..\..\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Localization", "..\..\Duplicati\Library\Localization\Duplicati.Library.Localization.csproj", "{B68F2214-951F-4F78-8488-66E1ED3F50BF}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Common", "..\..\Duplicati\Library\Common\Duplicati.Library.Common.csproj", "{D63E53E4-A458-4C2F-914D-92F715F58ACF}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -61,6 +63,10 @@ Global
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(MonoDevelopProperties) = preSolution
 		StartupItem = AutoUpdateBuilder.csproj
diff --git a/BuildTools/UpdateVersionStamp/Program.cs b/BuildTools/UpdateVersionStamp/Program.cs
index 8c9729468..076d36570 100644
--- a/BuildTools/UpdateVersionStamp/Program.cs
+++ b/BuildTools/UpdateVersionStamp/Program.cs
@@ -30,7 +30,7 @@ namespace UpdateVersionStamp
             
             public void Fixup()
             {
-                sourcefolder = Duplicati.Library.Utility.Utility.AppendDirSeparator(System.IO.Path.GetFullPath(sourcefolder.Replace("/", DIR_SEP)));
+                sourcefolder = Duplicati.Library.Common.IO.Util.AppendDirSeparator(System.IO.Path.GetFullPath(sourcefolder.Replace("/", DIR_SEP)));
                 if (ignorefilter != null)
                     ignorefilter =ignorefilter.Replace("/", DIR_SEP);
             }
diff --git a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
index e8524f649..463888901 100644
--- a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
+++ b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.csproj
@@ -48,6 +48,10 @@
       <Project>{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}</Project>
       <Name>Duplicati.Library.Utility</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Duplicati\Library\Common\Duplicati.Library.Common.csproj">
+      <Project>{D63E53E4-A458-4C2F-914D-92F715F58ACF}</Project>
+      <Name>Duplicati.Library.Common</Name>
+    </ProjectReference>
   </ItemGroup>
   <ItemGroup>
     <None Include="app.config" />
diff --git a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.sln b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.sln
index eb92b843b..9bae29432 100644
--- a/BuildTools/UpdateVersionStamp/UpdateVersionStamp.sln
+++ b/BuildTools/UpdateVersionStamp/UpdateVersionStamp.sln
@@ -5,6 +5,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UpdateVersionStamp", "Updat
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Utility", "..\..\Duplicati\Library\Utility\Duplicati.Library.Utility.csproj", "{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Duplicati.Library.Common", "..\..\Duplicati\Library\Common\Duplicati.Library.Common.csproj", "{D63E53E4-A458-4C2F-914D-92F715F58ACF}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -19,6 +21,10 @@ Global
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{DE3E5D4C-51AB-4E5E-BEE8-E636CEBFBA65}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D63E53E4-A458-4C2F-914D-92F715F58ACF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(MonoDevelopProperties) = preSolution
 		StartupItem = UpdateVersionStamp.csproj
diff --git a/Duplicati/Library/Common/Duplicati.Library.Common.csproj b/Duplicati/Library/Common/Duplicati.Library.Common.csproj
index 0b8bd0289..be138ff58 100644
--- a/Duplicati/Library/Common/Duplicati.Library.Common.csproj
+++ b/Duplicati/Library/Common/Duplicati.Library.Common.csproj
@@ -17,6 +17,8 @@
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <TargetFrameworkProfile />
     <UseMSBuildEngine>false</UseMSBuildEngine>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
diff --git a/Duplicati/Library/Utility/Duplicati.Library.Utility.csproj b/Duplicati/Library/Utility/Duplicati.Library.Utility.csproj
index c640b9ac0..42a947f5b 100644
--- a/Duplicati/Library/Utility/Duplicati.Library.Utility.csproj
+++ b/Duplicati/Library/Utility/Duplicati.Library.Utility.csproj
@@ -17,6 +17,8 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <UseMSBuildEngine>false</UseMSBuildEngine>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>True</DebugSymbols>