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なんか中途半端に予測が聞かない。VSCodeのOmni Sharpのログを見るとProjectがうまく読めていないことがわかった。

 The reference assemblies for framework ".NETFramework,Version=v4.7.1" were not found. To resolve this, 
install the SDK or Targeting Pack for this framework version or retarget your application to a version of the 
framework for which you have the SDK or Targeting Pack installed. Note that assemblies will be resolved from 
the Global Assembly Cache (GAC) and will be used in place of reference assemblies. Therefore your assembly may 
not be correctly targeted for the framework you intend.

.Net Coreでは.net 4.5相当のコードを実行することはできないのでMonoを入れる必要がある。

brew install mono

前に入れた覚えがある人はbrew upgrade monoをして最新版にしよう。

  "omnisharp.useGlobalMono": "always",
  "omnisharp.monoPath": "/usr/local/Cellar/mono/"


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Help us understand the problem. What are the problem?