From @csteres-cpi on May 5, 2017 1:14

• VSCode Version:

Version 1.12.1
Commit f6868fce3eeb16663840eb82123369dec6077a9b
Date 2017-05-04T21:21:43.120Z
Shell 1.6.6
Renderer 56.0.2924.87
Node 7.4.0

• OS Version:
  Ubuntu (note this is running in a VirtualBox guest VM under Windows 10)
  % uname -a
  Linux CSteresUbuntu32 4.4.0-77-generic Unable to start debugging. No terminal is available to launch the debugger. Please install Gnome Terminal or XTerm. #98-Ubuntu SMP Wed Apr 26 08:33:44 UTC 2017 i686 i686 i686 GNU/Linux

Steps to Reproduce:

1. Installed fresh copy of VScode using .deb package
2. Installed C/C++ extensions 0.11.0; restart vscode
3. When VScode starts up it tries to update dependencies; sometimes if fails during downloadPackages (varies as to which package it fails on:

Updating C/C++ dependencies...

Downloading package 'C/C++ language components (Linux)' (6972 KB) .................... Done!
Downloading package 'ClangFormat (Linux)' (731 KB) .................... Done!
Downloading package 'Mono Framework Assemblies' (4751 KB) ....................Failed at stage: downloadPackages
Error: read ECONNRESET
at exports._errnoException (util.js:1022:11)
at TLSWrap.onread (net.js:572:26)

Finished

3b: sometimes it manages to download all four package dependencies but fails on the install of one of them, for example:

Updating C/C++ dependencies...

Downloading package 'C/C++ language components (Linux)' (6972 KB) .................... Done!
Downloading package 'ClangFormat (Linux)' (731 KB) .................... Done!
Downloading package 'Mono Framework Assemblies' (4751 KB) .................... Done!
Downloading package 'Mono Runtime (Linux / x86)' (1420 KB) .................... Done!

Installing package 'C/C++ language components (Linux)'
Installing package 'ClangFormat (Linux)'
Installing package 'Mono Framework Assemblies'
Failed at stage: installPackages
Error: end of central directory record signature not found

Finished

4. In addition to this, the C/Cpp Language Server output shows errors:

[6:11:53 PM] Connection to server is erroring. Shutting down server.
[6:11:53 PM] Connection to server is erroring. Shutting down server.
[6:11:53 PM] Connection to server is erroring. Shutting down server.

Copied from original issue: microsoft/vscode#25960