diff --git a/README b/README
index accf815..0727c0e 100644
--- a/README
+++ b/README
@@ -6,4 +6,13 @@ Common build system for the Sharp Architecture project.
 
 SA repositories reference the build project as a Git submodule. Custom scripts are written that reference and invoke the main builld system, hooking into the extensibility points to build and package the correct project/files.
 
-For an example on how to use this build, please refer to the readme in SampleBuild directory.
\ No newline at end of file
+For an example on how to use this build, please refer to the readme in SampleBuild directory.
+
+Build system requires following chocolatey packages to be installed before build
+
+* nuget.commandline
+* resharper-clt.portable
+* nunit.portable
+* opencover.portable
+* reportgenerator.portable
+
diff --git a/Targets/BuildSolutions.target b/Targets/BuildSolutions.target
index 90b232d..99aabbf 100644
--- a/Targets/BuildSolutions.target
+++ b/Targets/BuildSolutions.target
@@ -3,7 +3,7 @@
   
   <Target Name="RestorePackages">
     <Error
-      Text="nuget.exe shim not found. Install ChocolateyPackage nuget.commandline"
+      Text="nuget.exe shim was not found. Install ChocolateyPackage nuget.commandline"
       Condition="!Exists('$(ShimsPath)\nuget.exe')"
     />
            
diff --git a/Targets/RunNUnitTests.target b/Targets/RunNUnitTests.target
index c40be10..97b6c92 100644
--- a/Targets/RunNUnitTests.target
+++ b/Targets/RunNUnitTests.target
@@ -13,6 +13,10 @@
       Text="nunit-console shim not found. Install Chocolatey package nunit.portable first."
       Condition="!Exists('$(ShimsPath)\nunit3-console.exe')" 
     />
+    <Error
+      Text="OpenConver profiler was not found. Install Chocolatey package opencover.portable"
+      Condition="!Exists('$(OpenCoverMSBuildTasksPath)\OpenCover.targets')"
+    />
     <PropertyGroup>
       <TeamCityOutput Condition=" '$(IsDesktopBuild)' != 'true' ">--teamcity</TeamCityOutput>
       <NUnit3Where Condition=" '$(NUnit3TestsFilter)' != '' ">--where $(NUnit3TestsFilter)</NUnit3Where>
@@ -32,10 +36,13 @@
     <!-- reportgenerator.portable -->
     <Message Condition=" '$(IsDesktopBuild)' != 'true' "
         Text="Skipping HTML report generation non-desktop build." />
-    <Exec Condition=" '$(IsDesktopBuild)' == 'true' "
+    <Error
+      Text="Report Generator was not found. Install Chocolatey package reportgenerator.portable"
+      Condition="'$(IsDesktopBuild)' != 'true' "
+    />
+    <Exec Condition=" ('$(IsDesktopBuild)' == 'true') And (!Exists('$(ShimsPath)\ReportGenerator.exe')) "
       Command="$(ShimsPath)\ReportGenerator.exe -reports:$(NUnitResultsPath)\TestCoverage.xml -reporttypes:Html -targetdir:$(NUnitResultsPath)\CoverageReport"
     />
-    
     <MSBuild.Community.Tasks.WebUpload Condition=" '$(APPVEYOR_JOB_ID)' != '' "
       RemoteUri="https://ci.appveyor.com/api/testresults/nunit3/$(APPVEYOR_JOB_ID)"
       FileName="$(NUnitResultsPath)\NUnitOutput.xml"