title: .net core: Invalid property identifier character: {. Path 'Logging', line 10, position 2. Newtonsoft.Json.JsonTextReader.ParseProperty()
body: <p>I added Angular CLI to my project and everything was working. Then I decided to click the little flag at the top in Visual Studio 2017 which indicated that there is a new update for VS 2017. I installed it and restarted my Windows 10 PC.</p>
  
  <p>Now it builds successfully using F6 however I'm getting the following error when I <kbd>F5</kbd> or <kbd>Ctrl+F5</kbd> my .net core mvc application in a browser:</p>
  
  <p>screenshot: <a href="https://imgur.com/wFFN1r8" rel="nofollow noreferrer">https://imgur.com/wFFN1r8</a></p>
  
  <blockquote>
    <p>An error occurred while starting the application.</p>
    
    <p>JsonReaderException: Invalid property identifier character: {. Path
    'Logging', line 10, position 2.
    Newtonsoft.Json.JsonTextReader.ParseProperty()</p>
    
    <p>FormatException: Could not parse the JSON file. Error on line number
    '10': '}, {'.
    Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(bool
    reload)</p>
    
    <p>JsonReaderException: Invalid property identifier character: {. Path
    'Logging', line 10, position 2.
    Newtonsoft.Json.JsonTextReader.ParseProperty()
    Newtonsoft.Json.Linq.JContainer.ReadContentFrom(JsonReader r,
    JsonLoadSettings settings)
    Newtonsoft.Json.Linq.JContainer.ReadTokenFrom(JsonReader reader,
    JsonLoadSettings options) Newtonsoft.Json.Linq.JObject.Load(JsonReader
    reader, JsonLoadSettings settings)
    Microsoft.Extensions.Configuration.Json.JsonConfigurationFileParser.Parse(Stream
    input)
    Microsoft.Extensions.Configuration.Json.JsonConfigurationProvider.Load(Stream
    stream)</p>
  </blockquote>
  
  <p>My appsettings.json file looks like:</p>
  
  <pre><code>{
     "Logging": {
      "IncludeScopes": false,
      "LogLevel": {
        "Default": "Warning"
       }
     }
  }
  </code></pre>
  
  <p>I can't think of any other .json file that would be a problem. I removed the Angular client-app folder I added and it still produces the same error.</p>
  
  <p>I have no clue where to begin with trying to solve this issue and Google isn't bringing up any other posts with the same issue.</p>
  
  <p>Suggestions?</p>