2 files changed, 104 insertions, 2 deletions
diff --git a/tools/run_tests/pre_build_csharp.bat b/tools/run_tests/pre_build_csharp.bat
index e7131d504c..580d5638fd 100644
--- a/tools/run_tests/pre_build_csharp.bat
+++ b/tools/run_tests/pre_build_csharp.bat
@@ -38,8 +38,61 @@ cd /d %~dp0\..\..
 set NUGET=C:\nuget\nuget.exe
 
 if exist %NUGET% (
+  @rem Restore Grpc packages by packages since Nuget client 3.4.4 doesnt support restore
+  @rem by solution
+  @rem Moving into each directory to let the restores work with both nuget 3.4 and 2.8
   %NUGET% restore vsprojects/grpc_csharp_ext.sln || goto :error
-  %NUGET% restore src/csharp/Grpc.sln || goto :error
+
+  cd src/csharp
+
+  cd Grpc.Auth || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.Core || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.Core.Tests || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.Examples.MathClient || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.Examples.MathServer || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.Examples || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.HealthCheck.Tests || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.HealthCheck || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.IntegrationTesting.Client || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.IntegrationTesting.QpsWorker || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.IntegrationTesting.StressClient || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+  cd ..
+
+  cd Grpc.IntegrationTesting || goto :error
+  %NUGET% restore -PackagesDirectory ../packages || goto :error
+
+  cd /d %~dp0\..\.. || goto :error
 )
 
 endlocal
diff --git a/tools/run_tests/pre_build_csharp.sh b/tools/run_tests/pre_build_csharp.sh
index 3ff1a4e5a8..0fd3b92a95 100755
--- a/tools/run_tests/pre_build_csharp.sh
+++ b/tools/run_tests/pre_build_csharp.sh
@@ -37,5 +37,54 @@ root=`pwd`
 
 if [ -x "$(command -v nuget)" ]
 then
-  nuget restore Grpc.sln
+  # Restoring Nuget packages by packages rather than by solution because of
+  # inability to restore by solution with Nuget client 3.4.4
+  # Moving into each directory to let the restores work with nuget 3.4 and 2.8
+  cd Grpc.Auth
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.Core.Tests
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.Core
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.Examples.MathClient
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.Examples.MathServer
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.Examples
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.HealthCheck.Tests
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.HealthCheck
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.IntegrationTesting.Client
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.IntegrationTesting.QpsWorker
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.IntegrationTesting.StressClient
+  nuget restore -PackagesDirectory ../packages
+  cd ..
+
+  cd Grpc.IntegrationTesting
+  nuget restore -PackagesDirectory ../packages
+  cd ..
 fi