vbc.exe exited with code -2146232797

Question

I am moving a solution with multiple projects to VS 2015. The base project builds just fine in VS 2013. But when I try to build in VS 2015 I get the error below.

C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.VisualBasic.Core.targets(56,5): error MSB6006: "vbc.exe" exited with code -2146232797.

Need help please

Answer 1

I talked with MS Tech Support. It's a confirmed bug in the VB compiler. They say it will be fixed in the next update.

In the mean time the work around is to install a Nuget package.

Please follow these instructions to install Nuget package.

1. Open the affected project in Visual Studio

2. Open the Package Manager Console (Tools -> NuGet Package Manager -> Package Manager Console)

3. Run:

   Install-package Microsoft.Net.Compilers -version 1.1.1
   

Answer 2

I had a large solution that was failing to build after updating to VS 2015 Update 1 RTM. In my case, there were a number of warnings of

Namespace or type specified in the Imports '<import name>' doesn't contain any public member or cannot be found. Make sure the namespace or the type is defined and contains at least one public member. Make sure the imported element name doesn't use any aliases.

that occurred right before "vbc.exe" crashed. Once I removed those extra, unnecessary Imports, the solution build correctly.