diff --git a/Project2015To2017.Console/Program.cs b/Project2015To2017.Console/Program.cs
index 3416e5e..ab5ac72 100644
--- a/Project2015To2017.Console/Program.cs
+++ b/Project2015To2017.Console/Program.cs
@@ -15,6 +15,11 @@ static void Main(string[] args)
 			var writer = new Project2015To2017.Writing.ProjectWriter();
 			foreach (var definition in ProjectConverter.Convert(args[0], new Progress<string>(System.Console.WriteLine)))
 			{
+				if (definition == null)
+				{
+					continue;
+				}
+
 				writer.Write(definition);
 			}
         }
diff --git a/Project2015To2017/Definition/Project.cs b/Project2015To2017/Definition/Project.cs
index 3c5f8d7..c1351dc 100644
--- a/Project2015To2017/Definition/Project.cs
+++ b/Project2015To2017/Definition/Project.cs
@@ -16,6 +16,7 @@ public sealed class Project
 		public IReadOnlyList<XElement> Imports { get; internal set; }
         public IReadOnlyList<XElement> Targets { get; internal set; }
 		public IReadOnlyList<XElement> BuildEvents { get; internal set; }
+		public IReadOnlyList<string> Configurations { get; internal set; }
 
 		public IReadOnlyList<string> TargetFrameworks { get; internal set; }
         public ApplicationType Type { get; internal set; }
diff --git a/Project2015To2017/ProjectPropertiesTransformation.cs b/Project2015To2017/ProjectPropertiesTransformation.cs
index 7f5ba13..4b6b4ef 100644
--- a/Project2015To2017/ProjectPropertiesTransformation.cs
+++ b/Project2015To2017/ProjectPropertiesTransformation.cs
@@ -51,6 +51,16 @@ public Task TransformAsync(XDocument projectFile, DirectoryInfo projectFolder, P
 				}
 			}
 
+			// yuk... but hey it works...
+			definition.Configurations = propertyGroups
+				.Where(x => x.Attribute("Condition") != null)
+				.Select(x => x.Attribute("Condition").Value)
+				.Where(x => x.Contains("'$(Configuration)|$(Platform)'"))
+				.Select(x => x.Split('\'').Skip(3).FirstOrDefault())
+				.Where(x => x != null)
+				.Select(x => x.Split('|')[0])
+				.ToArray();
+
 			definition.BuildEvents = propertyGroups.Elements().Where(x => x.Name == nsSys + "PostBuildEvent" || x.Name == nsSys + "PreBuildEvent").ToArray();
 			definition.AdditionalPropertyGroups = ReadAdditionalPropertyGroups(propertyGroups);
 			definition.Imports = projectFile.Element(nsSys + "Project").Elements(nsSys + "Import").Where(x =>
diff --git a/Project2015To2017/Writing/ProjectWriter.cs b/Project2015To2017/Writing/ProjectWriter.cs
index 5e40b1e..40640f1 100644
--- a/Project2015To2017/Writing/ProjectWriter.cs
+++ b/Project2015To2017/Writing/ProjectWriter.cs
@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -176,7 +177,8 @@ private XElement GetMainPropertyGroup(Project project, FileInfo outputFile)
 
             AddTargetFrameworks(mainPropertyGroup, project.TargetFrameworks);
 
-            AddIfNotNull(mainPropertyGroup, "Optimize", project.Optimize ? "true" : null);
+			AddIfNotNull(mainPropertyGroup, "Configurations", string.Join(";", project.Configurations ?? Array.Empty<string>()));
+			AddIfNotNull(mainPropertyGroup, "Optimize", project.Optimize ? "true" : null);
             AddIfNotNull(mainPropertyGroup, "TreatWarningsAsErrors", project.TreatWarningsAsErrors ? "true" : null);
             AddIfNotNull(mainPropertyGroup, "RootNamespace", project.RootNamespace != Path.GetFileNameWithoutExtension(outputFile.Name) ? project.RootNamespace : null);
             AddIfNotNull(mainPropertyGroup, "AssemblyName", project.AssemblyName != Path.GetFileNameWithoutExtension(outputFile.Name) ? project.AssemblyName : null);
diff --git a/Project2015To2017Tests/ProjectPropertiesTransformationTest.cs b/Project2015To2017Tests/ProjectPropertiesTransformationTest.cs
index 3fa694e..5c38dd3 100644
--- a/Project2015To2017Tests/ProjectPropertiesTransformationTest.cs
+++ b/Project2015To2017Tests/ProjectPropertiesTransformationTest.cs
@@ -470,6 +470,79 @@ public async Task MaintainsPrePostBuildEvent()
 			Assert.AreEqual(1, project.BuildEvents.Count);
 		}
 
+		[TestMethod]
+		public async Task ReadsConfigurations()
+		{
+			var xml = @"
+<Project DefaultTargets=""Build"" xmlns=""http://schemas.microsoft.com/developer/msbuild/2003"" ToolsVersion=""4.0"">
+  <Import Project=""$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props"" Condition=""Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')"" />
+  <PropertyGroup>
+    <VisualStudioVersion Condition=""'$(VisualStudioVersion)' == ''"">15.0</VisualStudioVersion>
+    <OldToolsVersion>14.0</OldToolsVersion>
+    <DslTargetsPath>..\SDK\v15.0\MSBuild\DSLTools</DslTargetsPath>
+    <TargetFrameworkVersion>v4.6.1</TargetFrameworkVersion>
+    <MinimumVisualStudioVersion>15.0</MinimumVisualStudioVersion>
+  </PropertyGroup>
+  <PropertyGroup>
+    <Configuration Condition="" '$(Configuration)' == '' "">Debug</Configuration>
+    <Platform Condition="" '$(Platform)' == '' "">AnyCPU</Platform>
+    <ProjectGuid>{87161453-D71B-4ABB-BADB-1D0E621E8EA0}</ProjectGuid>
+    <OutputType>Library</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>Class1</RootNamespace>
+    <AssemblyName>Class1</AssemblyName>
+    <TargetFrameworkVersion>v4.7</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+    <TargetFrameworkProfile />
+  </PropertyGroup>
+  <PropertyGroup Condition="" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <DocumentationFile>bin\Debug\Class1.xml</DocumentationFile>
+    <RunCodeAnalysis>false</RunCodeAnalysis>
+    <CodeAnalysisRuleSet>..\FxCop.Rules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <TreatWarningsAsErrors>false</TreatWarningsAsErrors>
+    <DocumentationFile>bin\Release\Class1.xml</DocumentationFile>
+    <RunCodeAnalysis>true</RunCodeAnalysis>
+    <CodeAnalysisRuleSet>..\FxCop.Rules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup Condition=""'$(Configuration)|$(Platform)' == 'Release_CI|AnyCPU'"">
+    <OutputPath>bin\Release_CI\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>..\FxCop.Rules.ruleset</CodeAnalysisRuleSet>
+    <DocumentationFile>bin\Release_CI\Class1.xml</DocumentationFile>
+    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+    <RunCodeAnalysis>true</RunCodeAnalysis>
+  </PropertyGroup>
+ </Project>";
+
+			var project = await ParseAndTransformAsync(xml).ConfigureAwait(false);
+
+			Assert.AreEqual(3, project.Configurations.Count);
+			Assert.AreEqual(1, project.Configurations.Count(x => x == "Debug"));
+			Assert.AreEqual(1, project.Configurations.Count(x => x == "Release_CI"));
+		}
+
 		private static async Task<Project> ParseAndTransformAsync(string xml)
 		{
 			var document = XDocument.Parse(xml);