Uncaught TypeError: Cannot read property 'Documentation' of undefined

[prasannavl]

[Enter steps to reproduce below:]

Happened on typing the "app.UseDeveloperExceptionPage" method's intellisense from the latest rc1 packages of ASP vNext.

Update: Okay, happens on all of the app.* methods.

Atom Version: 1.2.3 System: Microsoft Windows 10 Enterprise Thrown From: omnisharp-atom package, v0.25.10

Stack Trace

Uncaught TypeError: Cannot read property 'Documentation' of undefined

At C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:260

TypeError: Cannot read property 'Documentation' of undefined
    at FastDom.<anonymous> (C:\Users\PVL\.atom\packages\omnisharp-atom\lib\omnisharp-atom\views\signature-help-view.js:168:61)
    at FastDom.run (C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:318:17)
    at FastDom.flush (C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:228:12)
    at FastDom.runBatch (C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:249:12)
    at C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:193:12
    at frame (C:\Users\PVL\.atom\packages\omnisharp-atom\node_modules\fastdom\index.js:364:15)

Commands

  2x -0:24.1.0 fuzzy-finder:toggle-file-finder (ol.tree-view.full-menu.list-tree.has-collapsable-children.focusable-panel)
     -0:20.6.0 core:confirm (atom-text-editor.editor.mini.is-focused)
  2x -0:08.8.0 core:move-right (atom-text-editor.editor.is-focused.omnisharp-editor)
  2x -0:07.8.0 core:backspace (atom-text-editor.editor.is-focused.omnisharp-editor)
     -0:06.1.0 core:move-down (atom-text-editor.editor.is-focused.omnisharp-editor)
     -0:05.7.0 core:move-up (atom-text-editor.editor.is-focused.omnisharp-editor)
     -0:03.3.0 autocomplete-plus:activate (atom-text-editor.editor.is-focused.omnisharp-editor)

Config

{
  "core": {
    "audioBeep": false,
    "disabledPackages": [
      "autocomplete-python",
      "go-find-references",
      "go-rename",
      "language-rust",
      "node-debugger",
      "quantum-shell",
      "script",
      "jshint"
    ]
  },
  "omnisharp-atom": {
    "autoAddExternalProjects": true,
    "autoAdjustTreeView": true,
    "signatureHelp": true,
    "codeLens": false
  }
}

Installed Packages

# User
.bin, vundefined
atom-html-preview, v0.1.13
atom-jade, v0.3.0
atom-ternjs, v0.8.6
atom-typescript, vundefined
atom-yeoman, v0.3.15
auto-detect-indentation, v0.4.2
autoclose-html, v0.19.0
autocomplete-clang, v0.8.8
color-picker, v2.0.13
highlight-line, v0.11.0
highlight-selected, v0.11.1
javascript-snippets, v1.0.0
json-schema, v0.1.15
language-javascript-jsx, v0.3.7
language-powershell, v2.1.0
last-cursor-position, v0.9.0
linter, v1.11.2
linter-eslint, v5.2.1
minimap, v4.16.1
minimap-find-and-replace, v4.3.2
minimap-highlight-selected, v4.3.1
omnisharp-atom, v0.25.10
pigments, v0.19.0
save-session, v0.15.7

# Dev
No dev packages

[wmeints]

Same is happening, Exception I'm running on OS X 10.10. It only happens for the IApplicationBuilder methods.

[dill0wn]

I'm seeing the same thing. I've got a hunch that it's related to the "signatureHelp" option. I'm saying this because a bunch of these all blew up in a row after hitting enter to auto-complete string.IsNullOrEmpty(string value). It was showing:

[david-driscoll]

It is signature help, I thought I had killed all those exceptions, but I noticed one earlier today.

On Thu, Jan 14, 2016 at 6:16 PM, dill0wn notifications@github.com wrote:

I'm seeing the same thing. I've got a hunch that it's related to the "signatureHelp" option. I'm saying this because a bunch of these all blew up in a row after hitting enter to auto-complete string.IsNullOrEmpty(string value). It was showing:

[image: screenshot 2016-01-14 18 16 23] https://cloud.githubusercontent.com/assets/1267330/12340773/f19c50a8-baea-11e5-9ca1-3b74a6cd8fbb.png

— Reply to this email directly or view it on GitHub https://github.com/OmniSharp/omnisharp-atom/issues/561#issuecomment-171813372 .

[Yantrio]

I get these too, and my atom freezes at the same time :(

[notpeelz]

I'd love to see this fixed; it's a usability-crippling bug.