Paket 'pack' does not correctly exclude 'project' template files #1818

Description

I experienced some very unclear difficulties with adding exclusions to paket's pack command.

Paket pack exclude parameters doesn't seem to work when thepaket.template file begins with type project, even if the project specifies an ID on the next line.

Repro steps

1. Create a paket.template file in your project with the type as project.
2. Try to run paket pack:
   .paket/paket.exe -v pack output "bin" exclude OpenTK.GLWidget

Expected behavior

Paket should exclude the project by ID if it specifies one, regardless of whether the type is a project or a file.

Actual behavior

Paket fails with an obscure error message:
Paket failed with: Could not find a part of the path '<snip>\src\OpenTK.GLWidget\bin\Release\OpenTK.GLWidget.dll'.

Known workarounds

Change the type from project to file.

Related information

• Operating system: W10
• Branch: Stable? Whichever the bootstrapper downloads.