.NET Core Web App doesn't break on exception, and no details in exception

Question

I have a new .NET Core 1.0 project, and for some unknown reason it has stopped (or never did, I do not recall) breaking when debugging.

I've added the StackTrace package here: How can I get the line number and file name from an exception in net Core?

But with no success.

I'm using VS2015 community and the standard tooling from there.

A potentially relevant snippet from my project.json file:

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true,
    "define": [ "DEBUG", "TRACE" ]
  },
  "runtimes": {
    "win10-x64": {}
  },
  "runtimeOptions": {
    "configProperties": {
      "System.GC.Server": true
    }
  },

---

UPDATE

OK, if ou start with a new Core Web Application everything works as expected.

If you then update all the packages, it'll fail to build until you add:

"runtimes": {
    "win10-x64": {},
    "win81-x64": {},
    "win8-x64": {},
    "win7-x64": {},
    "win10-x86": {},
    "win81-x86": {},
    "win8-x86": {},
    "win7-x86": {}
  },

To the project.json to get it to build and launch.

By doing this, I can now get line number but still no breaking. My new test project works as expected. I'll have to go through and see the differences.

Answer 1

It appears to be that somehow the exception details were unchecked.

I reset all of the project.json dependencies, which meant I received detailed exceptions on the error pages, however VS still didn't break.

By checking the below:

It's now working correctly. I do not know if that is overkill, and if it's CORE specific, or per project, or something in VS (given a new CORE project did break it makes me think it's per project).