VS's Package Management Console is broken

Description

The changes introduced in commit 833b36c13 broke the Package Management Console in Visual Studio.

An error occurred while reading file 'D:\Work\PaketVersionTest\packages.config': Invalid package version for package id 'EntityFramework': '[6.2.0]'

The brackets syntax seems to be not supported by NuGet.

Repro steps

1. Create paket.dependencies with the following content:

framework: net472
redirects: on

source https://api.nuget.org/v3/index.json

nuget EntityFramework ~> 6.2 version_in_path: true

1. Create a classic .csproj and put EntityFramework to its paket.references.

2. Execute paket install.

Expected behavior

1. The created packages.config contains:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="EntityFramework" version="6.2.0" />
</packages>

1. The Package Management Console window can be opened, no errors are shown.

Actual behavior

1. The created packages.config contains:

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="EntityFramework" version="[6.2.0]" />
</packages>

1. An error is displayed after opening the Package Management Console window.

[enricosada]

i can repro too at work. after a paket install, the version is broken because [x.y.x] is not supported by vs. i’ll fix that

[matthid]

I don’t think packages.config allows version ranges. packages.config always locks a particular version. I guess we have mixed parsing/serializing logic between multiple formats here?