title: Dotnet build working yesterday failing today
body: <p>I am using <code>dotnet build</code> to do a build of our .net core project which uses React and Webpack.  It was working perfectly yesterday, today...well it fails with the following error:</p>
  
  <pre><code>    EXEC : { error : Found '{' where a key name was expected (check your syntax or use quotes if the key name includes {}[],: or whitespace) at
  line 1,1 &gt;&gt;&gt;{ [c:\Code\blah\blah\blah.csproj]
      "compileOnSave" ...
  EXEC : at error (c: \Code\blah\blah\node_modules\hjson\lib\hjson-parse.js:40:11) [c:\Code\blah\blah\Prom
  appApiClient.csproj]
        at keyname (c:\Code\blah\blah\node_modules\hjson\lib\hjson-parse.js:158:9)
        at object (c:\Code\blah\blah\node_modules\hjson\lib\hjson-parse.js:356:15)
        at rootValue (c:\Code\blah\blah\node_modules\hjson\lib\hjson-parse.js:426:28)
        at module.exports (c:\Code\blah\blah\node_modules\hjson\lib\hjson-parse.js:444:10)
        at Object.parse (c:\Code\blah\blah\node_modules\hjson\lib\hjson.js:161:14)
        at ensureTsConfigContainsTypesEntry (c:\Code\blah\blah\node_modules\aspnet-webpack-react\scripts\postinstall.js:31:3
  9)
        at Object.&lt;anonymous&gt; (c:\Code\blah\blah\node_modules\aspnet-webpack-react\scripts\postinstall.js:51:5)
        at Module._compile (module.js:570:32)
        at Object.Module._extensions..js (module.js:579:10) hint: '' }
  
    &gt; node-sass@4.5.3 postinstall c:\Code\blah\blah\node_modules\node-sass
    &gt; node scripts/build.js
  </code></pre>
  
  <p>I have no idea where to look or what the error could possibly be, please someone help?!</p>