# Unable to find version '14.0.0.3' of package 'MSBuild.Microsoft.VisualStudio.Web.targets': NuGet "WARNING: Error: SendFailure (Error writing headers)"

**URL:** <https://travis-ci.community/t/unable-to-find-version-14-0-0-3-of-package-msbuild-microsoft-visualstudio-web-targets-nuget-warning-error-sendfailure-error-writing-headers/9002>\
**Category:** Linux\
**Tags:** travis-build\
**Created:** [June 12, 2020, 11:10pm UTC](https://travis-ci.community/t/unable-to-find-version-14-0-0-3-of-package-msbuild-microsoft-visualstudio-web-targets-nuget-warning-error-sendfailure-error-writing-headers/9002 "2020-06-12T23:10:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vinceVM](https://avatars.discourse-cdn.com/v4/letter/v/ecae2f/32.png) [@vinceVM](https://travis-ci.community/u/vinceVM)\
**Post date:** [June 12, 2020, 11:10pm UTC](https://travis-ci.community/t/unable-to-find-version-14-0-0-3-of-package-msbuild-microsoft-visualstudio-web-targets-nuget-warning-error-sendfailure-error-writing-headers/9002/1 "2020-06-12T23:10:15Z")

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Hi, I’m very new to travis and I’m getting the below error

> 1.73s$ nuget restore DMX.sln  
> 612WARNING: Error: SendFailure (Error writing headers)  
> 613Unable to find version ‘14.0.0.3’ of package  
> ‘MSBuild.Microsoft.VisualStudio.Web.targets’.  
> 614The command “nuget restore DMX.sln” failed and exited with 1 during .

below is my config:

> language: csharp  
> solution: DMX.sln  
> #mono: 3.12.0  
> mono: none  
> dotnet: 3.1.101  
> before\_install:
> 
> - sudo apt install nuget  
> install:
> - nuget restore DMX.sln  
> script:
> - dotnet build DMX.sln -c Release

Any help greatly appreciated.

---

<div class="post-metadata">

**Author:** ![native-api](https://sea1.discourse-cdn.com/flex015/user_avatar/travis-ci.community/native-api/32/430_2.png) [@native-api](https://travis-ci.community/u/native-api)\
**Post date:** [June 13, 2020, 10:22am UTC](https://travis-ci.community/t/unable-to-find-version-14-0-0-3-of-package-msbuild-microsoft-visualstudio-web-targets-nuget-warning-error-sendfailure-error-writing-headers/9002/2 "2020-06-13T10:22:44Z")

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[Error during restoring packages on Ubuntu · Issue #4089 · dotnet/runtime](https://github.com/dotnet/runtime/issues/4089) suggests that this happens when you have outdated or no certificates in the Mono key store.

Try updating the `ca-certificates` Apt package.

* * *

[https://www.nuget.org/packages/MSBuild.Microsoft.VisualStudio.Web.targets/](https://www.nuget.org/packages/MSBuild.Microsoft.VisualStudio.Web.targets/) and [https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-restore](https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-restore) also suggest using `dotnet restore` instead of `nuget restore`.

* * *

If that doesn’t help, please link to a build, I can’t say anything else otherwise.