diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index e45dec9..04279db 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -3,10 +3,25 @@ trigger:
 - master
 pr:
 - master
-   
+
+
+
 jobs:
 - job: Windows
   pool:
     vmImage: windows-2019
+    
   steps:
-  - script: build.cmd
+   - task: UseDotNet@2
+     displayName: 'Use .NET Core sdk'
+     inputs:
+       packageType: sdk
+       version: 3.0.100-preview6-012264
+       installationPath: $(Agent.ToolsDirectory)/dotnet
+   - task: UseDotNet@2
+     displayName: 'Use .NET Core sdk'
+     inputs:
+       packageType: sdk
+       version: 2.1.700
+       installationPath: $(Agent.ToolsDirectory)/dotnet
+   - script: build.cmd