Need better error when project.json is malformed

[yishaigalatzer]

Repro steps

Create a folder
create a project.json file that doesn't match the json spec (say just put hello world)
kpm build

Result - Error (expected) see below, but no physical path to where it happens, so when kpm build runs inside a script you don't get enough input to where things happened.

Would like to get the full physical path to the project.json file (if available)

Error example

Newtonsoft.Json.JsonReaderException: Unexpected character encountered while pars
ing value: E. Path '', line 0, position 0.
   at Newtonsoft.Json.JsonTextReader.ParseValue()
   at Newtonsoft.Json.JsonTextReader.ReadInternal()
   at Newtonsoft.Json.JsonTextReader.Read()
   at Newtonsoft.Json.Linq.JObject.Load(JsonReader reader)
   at Newtonsoft.Json.Linq.JObject.Parse(String json)
   at Microsoft.Framework.Runtime.Project.GetProject(String json, String project
Name, String projectPath)
   at Microsoft.Framework.Runtime.Project.TryGetProject(String path, Project& pr
oject)
   at Microsoft.Framework.PackageManager.BuildManager.Build()
   at Microsoft.Framework.PackageManager.Program.<>c__DisplayClass3.<Main>b__12(
)
   at Microsoft.Framework.Runtime.Common.CommandLine.CommandLineApplication.Exec
ute(String[] args)
   at Microsoft.Framework.PackageManager.Program.Main(String[] args)

[am11]

Microsoft uses Newtonsoft.Json in ASP.NET project systems as well as bringing the JSON support in VS (for JSON AST and indentation too I believe).

As you can see here: Microsoft.Framework.Runtime/project.json#L8, KRuntime is using 6.0.4 version (which, btw, is penultimate version and needs to be updated to 6.0.5?), while VS 2013 uses old 4.x version.

Therefore, reporting this issue to Json.NET's issue tracker (w.r.t this issue) might yield better results; as this kind of context would only be available to Newtonsoft.Json's parser.

[yishaigalatzer]

The issue is not related to json.NET at all.

Its the fact that kruntime doesn't provide the path to the file it opened. The code calls json.Net with a string.