Microsoft.Bcl.Build.targets causes project loading to fail - by abatishchev

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ID 788981 Comments
Status Active Workarounds
Type Bug Repros 26
Opened 5/30/2013 11:19:59 AM
Access Restriction Public


Enabling nuget packages auto-restore and updating Microsoft.Net.Http to ver. 2.1.10 introducing a dependency on Microsoft.Bcl.Build adds a new import into the project.
Now it can't be loaded on other dev machines due missing of this package/folder/targets file.
File can't be downloaded/package can't be restored because the only project referencing it is not loaded.
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Posted by George Lanes on 8/20/2013 at 7:51 PM
Try install BCL from package manager console.

PM> Install-Package Microsoft.Bcl.Build -Version 1.0.X

After to install, restore the missing references.

Best Regards

Posted by Immo [MSFT] on 7/23/2013 at 8:50 AM
Hi Stef,

Sounds like the version of NuGet you've checked is outdated. You should be able to upgrade it by running nuget.exe update -self.

Posted by Stef Heyenrath on 7/22/2013 at 12:52 PM
Hi Jonathan, this fix does unfortunately not work for appharbor deployed web applications. I get this error during deploy:


     "D:\temp\4phgtvgc.tsb\input\KendoGridBinderExSolution.sln" (default target) (1) ->
     "D:\temp\4phgtvgc.tsb\input\KendoGridBinderEx.Examples.MVC\KendoGridBinderEx.Examples.MVC.csproj" (default target) (5) ->
     (RestorePackages target) ->
         D:\temp\4phgtvgc.tsb\input\.nuget\nuget.targets(43,9): error : The schema version of 'Microsoft.Bcl' is incompatible with version 1.6.21205.9031 of NuGet. Please upgrade NuGet to the latest version from [D:\temp\4phgtvgc.tsb\input\KendoGridBinderEx.Examples.MVC\KendoGridBinderEx.Examples.MVC.csproj]
         D:\temp\4phgtvgc.tsb\input\.nuget\nuget.targets(43,9): error MSB3073: The command ""D:\temp\4phgtvgc.tsb\input\.nuget\nuget.exe" install "D:\temp\4phgtvgc.tsb\input\KendoGridBinderEx.Examples.MVC\packages.config" -source "" -o "D:\temp\4phgtvgc.tsb\input\packages"" exited with code 1. [D:\temp\4phgtvgc.tsb\input\KendoGridBinderEx.Examples.MVC\KendoGridBinderEx.Examples.MVC.csproj]

Any ideas how to solve this ?
Posted by Jonathan Gill UK on 7/3/2013 at 5:48 AM
Hi Stef

If your using git with appharbor my gist should work for you
Posted by Stef Heyenrath on 6/18/2013 at 3:04 AM
The automatic build and deployment on AppHB ( is also broken due to this bug.

I was not able to solve the error on AppHB with the work-arounds posted here, did anyone have more luck on that topic ?
Posted by Immo [MSFT] on 6/13/2013 at 2:58 PM
Thanks for reporting this issue.

We've published a blog post that describes what you can do to workaround the problem and how we are intending to fix it in the long run. Unfortunately, at this point there isn't a good solution or fix we could provide you with.

Immo Landwerth
Program Manager
.NET Framework Team
Posted by Chris McKee UK on 6/13/2013 at 8:24 AM
One day MSFT will test things before pushing them out; more so when its via NUGET
Posted by Carsten Schütte on 6/3/2013 at 11:31 AM
I can confirm this (ugly) problem.
Posted by Microsoft on 5/31/2013 at 12:46 AM
Thank you for submitting feedback on Visual Studio and .NET Framework. Your issue has been routed to the appropriate VS development team for investigation. We will contact you if we require any additional information.
Posted by Microsoft on 5/30/2013 at 11:51 AM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(
Posted by abatishchev on 5/30/2013 at 11:47 AM
A piece of TeamCity log proofing the issue:

Compilation errors

C:\TeamCity\buildAgent\work\7c87751726a5d2e3\ProductOnboarding\ProductOnboarding.csproj(229, 3): error MSB4019: The imported project "C:\TeamCity\buildAgent\work\7c87751726a5d2e3\packages\Microsoft.Bcl.Build.1.0.5\tools\Microsoft.Bcl.Build.targets" was not found.
Confirm that the path in the <Import> declaration is correct, and that the file exists on disk. Project ProductOnboarding\ProductOnboarding.csproj failed.
C:\TeamCity\buildAgent\work\7c87751726a5d2e3\ProductOnboarding.Tests\ProductOnboarding.Tests.csproj(81, 3): error MSB4019: The imported project "C:\TeamCity\buildAgent\work\7c87751726a5d2e3\packages\Microsoft.Bcl.Build.1.0.5\tools\Microsoft.Bcl.Build.targets" was not found. Confirm that the path in the <Import> declaration is correct, and that the file exists on disk.
Project ProductOnboarding.Tests\ProductOnboarding.Tests.csproj failed. Project StoreXpCatalog.sln failed.