Update

Author: Evans Aboge (from Dev Box)

.azure-pipelines/ci-build.yml

@@ -71,12 +71,16 @@ extends:
         - task: UseDotNet@2
           displayName: 'Use .NET 6'
           inputs:
-            version: 6.x
+            version: 6.0.x
+            packageType: sdk
+            installationPath: $(Agent.ToolsDirectory)/dotnet
 
         - task: UseDotNet@2
           displayName: 'Use .NET 8'
           inputs:
-            version: 8.x
+            version: 8.0.x
+            packageType: sdk
+            installationPath: $(Agent.ToolsDirectory)/dotnet
 
         # Install the nuget tool.
         - task: NuGetToolInstaller@1
@@ -89,15 +93,15 @@ extends:
         - task: DotNetCoreCLI@2
           displayName: 'build'
           inputs:
-            projects: '$(Build.SourcesDirectory)\Microsoft.OpenApi.sln'
+            projects: '$(Build.SourcesDirectory)/Microsoft.OpenApi.sln'
             arguments: '--configuration $(BuildConfiguration) --no-incremental'
 
         # Run the Unit test
         - task: DotNetCoreCLI@2
           displayName: 'test'
           inputs:
             command: test
-            projects: '$(Build.SourcesDirectory)\Microsoft.OpenApi.sln'
+            projects: '$(Build.SourcesDirectory)/Microsoft.OpenApi.sln'
             arguments: '--configuration $(BuildConfiguration) --no-build'
 
         - task: EsrpCodeSigning@5
@@ -109,7 +113,7 @@ extends:
             AuthAKVName: 'akv-prod-eastus'
             AuthCertName: 'ReferenceLibraryPrivateCert'
             AuthSignCertName: 'ReferencePackagePublisherCertificate'
-            FolderPath: '$(Build.SourcesDirectory)\src'
+            FolderPath: '$(Build.SourcesDirectory)/src'
             signConfigType: 'inlineSignParams'
             inlineOperation: |
               [