Sharepoint 2010 Project package: Cannot add a new project output assembly to the package
问题 When creating a Sharepoint 2010 project in VB.NET and wanting to deploy an additional referenced assembly you cannot add a new project output assembly to the package. To replicate the issue: Open Sharepoint 2010 project in Visual Studio 2010 Open "package\package.Package" Select "Advanced" In the Additional Assemblies area select "Add | Add assembly from Project Output..." This error is then presented: Cannot add a new project output assembly to the package. The path is not of a legal form.