diff --git a/Class1.cs b/Class1.cs
new file mode 100644
index 0000000..1bdf19c
--- /dev/null
+++ b/Class1.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace TeklaModelPlugin1
+{
+    internal class Class1
+    {
+    }
+}
diff --git a/TeklaModelPlugin1.csproj b/TeklaModelPlugin1.csproj
index 2238945..c681470 100644
--- a/TeklaModelPlugin1.csproj
+++ b/TeklaModelPlugin1.csproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="12.0">
   <PropertyGroup>
     <TSVersionNumber>21.0</TSVersionNumber>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -13,7 +13,7 @@
     <AssemblyName>TeklaModelPlugin1</AssemblyName>
     <ApplicationIcon>
     </ApplicationIcon>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
     <UpgradeBackupLocation>
@@ -44,6 +44,7 @@
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <DebugType>pdbonly</DebugType>
@@ -52,6 +53,7 @@
     <DefineConstants>TRACE</DefineConstants>
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
@@ -69,6 +71,7 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="Class1.cs" />
     <Compile Include="ModelPlugin.cs" />
     <Compile Include="MainForm.cs">
       <SubType>Form</SubType>
diff --git a/TeklaModelPlugin1.slnx b/TeklaModelPlugin1.slnx
index 5b9df8c..cf106be 100644
--- a/TeklaModelPlugin1.slnx
+++ b/TeklaModelPlugin1.slnx
@@ -1,3 +1,3 @@
 <Solution>
-  <Project Path="TeklaModelPlugin1.csproj" />
+  <Project Path="TeklaModelPlugin1.csproj" Id="446eea05-2797-4180-9aee-ad34e311dc76" />
 </Solution>