<p dir="auto">Core-js definition file defines a <code class="notranslate">PropertyKey</code> like the one in lib.es6.d.ts, now that this is in the main library, this is breaking the core-js compilation.<br>
See <a href="https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/core-js/core-js.d.ts#L21">https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/core-js/core-js.d.ts#L21</a></p>
<p dir="auto">Possible fix, rename the type declaration to something else now, to avoid breaking changes with the next TS release.</p>
<p dir="auto"><strong>TypeScript Version:</strong></p>
<p dir="auto">Microsoft.TypeScript.MSBuild.1.8.6</p>
<p dir="auto"><strong>Code</strong><br>
When I add this Nuget Package in a C#-Library Project or a C# ASP.NET Web-Project, nothing happens with the solution file. When I start the tsc.exe in the packages folder I get an error dialog box:</p>
<blockquote>
<p dir="auto">The program cannot be started, since MSVCP140.dll is missing.</p>
</blockquote>
<p dir="auto">VS 2015 is not installed.Only VS2013 Ultimate Update 5</p>
<p dir="auto"><strong>Expected behavior:</strong><br>
I would expect that the csproj would contain the props and target of the typescript compiler from the Microsoft.TypeScript.MSBuild.1.8.6-packages folder. And I would expect that I can start tsc.exe successfully from the commandline without this error.</p>
<p dir="auto"><strong>Actual behavior:</strong><br>
After applying the nuget package, the solution wide package.config has been changed. But the csproj is not changed and the typescript msbuild steps are not configured.</p>