LIB004 The manifest file contains syntax errors

[cof-tdawson]

Functional impact

LibMan with VS 15.8.0 Preview 2.0 has stopped working for me, parsing issue with filesystem providers' "files" array.

Minimal repro steps

1. Create New VS ASP.Net Web Application, SPA starter.
2. Enable Client-side Library Management
3. Add something. eg:

{
"version": "1.0",
"defaultProvider": "filesystem",
"libraries": [
{
"library": "node_modules/jquery/dist/",
"destination": "Scripts/lib/jquery",
"files": [ "jquery.min.js", "jquery.min.map" ]
}
]
}

Saving this results in:

LIB004 The manifest file contains syntax errors in the Error List pad

Expected result

This used to work last week ??

Actual result

LIB004 The manifest file contains syntax errors in the Error List pad

Further technical details

??

[cof-tdawson]

removing the files property and array avoids the error

[jodavis]

@justcla, please investigate why we're reporting a syntax error in seemingly valid JSON.

[justcla]

I tested this on the latest build from master.

I put the same json into a libman.json file in a new ASP.NET (Framework) MVC app that had a "node_modules/jquery/dist" dir with the two jquery files listed and it ran perfectly.

`

{
  "version": "1.0",
  "defaultProvider": "filesystem",
  "libraries": [
    {
      "library": "node_modules/jquery/dist/",
      "destination": "Scripts/lib/jquery",
      "files": [ "jquery.min.js", "jquery.min.map" ]
    }
  ]
}

`

[justcla]

Unable to reproduce with the latest code.
Please update to the latest version of Library Manager.

[adamreed90]

Same issue for me as well, removing the files block also stopped the error. If on a new ASP.NET Core 2.1 project in VS, using Add Client-Side Library creates a libman.json file that will not pass syntax checking, to test add "twitter-bootstrap" package. Reproduced error on two machines.

[cof-tdawson]

Still broken on 15.8.0 Preview 4.0 that came out today:

[cof-tdawson]

Still broken on Version 15.8.0 Preview 5.0

[cof-tdawson]

Still broken on Version 15.9.0 Preview 1.0

[jmcmillen]

I'm having this same issue in Visual Studio 15.8.5 in an ASP.NET Core 2.1 application.
If I remove the Files property, the error goes away and the restore works.

Has anyone found a solution for this?

[cof-tdawson]

Still broken with 15.9.0 Preview 3.0 when using the new GUI to create the libman.json file

[jimmylewis]

I haven't been able to repro this on my box (15.9). I've tried using the libman.json contents that @sysdev-cof posted in the original issue with a Web Application project, and also similar to the latest post in a .NET Core 2.1 app. Can you guys think of anything that I might be missing from the repro?