one more fix for #23 #24

Author: thangchung

appveyor.yml

@@ -1,12 +1,32 @@
 image: Visual Studio 2017
+
 init:
   - git config --global core.autocrlf true
+
+pull_requests:
+  # Do not increment build number for pull requests
+  do_not_increment_build_number: true
+
+nuget:
+  # Do not publish for pull requests
+  disable_publish_on_pr: true
+
+environment:
+  # Set the DOTNET_SKIP_FIRST_TIME_EXPERIENCE environment variable to stop wasting time caching packages
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+  # Disable sending usage data to Microsoft
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+
 assembly_info:
   patch: false
+
 configuration:
   - Debug
+
 build_script:
-  - ps: choco install dotnetcore-sdk --no-progress --confirm --version 2.2.0
+  - ps: choco install dotnetcore-sdk --no-progress --confirm --version 2.1.403
   - ps: ./build.ps1
+
 test: off
+
 skip_tags: true