安装vs2017后造成无法打开xproj项目无法打开

Error MSB4019 The imported project "C:\Program Files\dotnet\sdk
Error MSB4019 The imported project "C:\Program Files\dotnet\sdk\1.0.0-rc3-004530\Microsoft\VisualStudio\v14.0\DotNet\Microsoft.DotNet.Props" was not found.
Confirm that the path in the <Import> declaration is correct, and that the file exists on disk

{
"projects":[
"APISource.Web",
"APISourceWithHybrid.Web",
"APISourceWithJS.Web",
"ClientCredentialsAndPassword.Web",
"ClientCredentialsAndPassword.Web.Tests",
"HybridServer.Web",
"HybridServer.Web.Tests",
"ImplicitServer.Web",
"ImplicitServer.Web.Tests",
"ImplicitServerWithJS.Web",
"JavaScriptClient.Web.Tests"
],
"sdk":{
"version":"1.0.0-preview2-1-003177"
}
}

.0.0-rc3-004530\Microsoft\VisualStudio\v14.0\DotNet\Microsoft.DotNet.Props" was not found.Error MSB4019 The imported project "C:\Program Fil