problem:
Reason: Since .NET Core SDK is generally due to the release, then the need to observe the presence of the local version and the desired item according plate are the same.
In the present embodiment, the desired item version is 2.2, as shown below
Version exists locally as shown below, does not exist in the version 2.2, this time need Quguan network to download version 2.2 can be installed .Net Core SDK (https://dotnet.microsoft.com/download/dotnet-core)
