使用msbuild构建时出现C＃版本错误，使用Visual Studio可以
[英]C# version error when building with msbuild, ok with Visual Studio
问题描述
I can build my project just fine using Visual Studio 2017; 
我可以使用Visual Studio 2017很好地构建项目; however when I use msbuild 15, I get this eror: 但是，当我使用msbuild 15时，出现以下错误：
error CS8306: Tuple element name 'value' is inferred.
The language version is set to 7.3 in my project file; 在我的项目文件中，语言版本设置为7.3。 why would I get this error when running msbuild? 为什么在运行msbuild时会出现此错误？
2 个解决方案
解决方案1
3 已采纳 2018-08-25 16:37:34
I figured it out - thanks to Olivier Jacot-Descombes who suggested I look in the project properties! 我想通了-感谢Olivier Jacot-Descombes建议我查看项目属性！
What I needed to do was set my C# version for all platforms (eg any CPU, x68, x64) to 7.3 in addition to setting it for all configurations (debug/release) as he'd suggested. 除了他建议的所有配置 （调试/发行版）设置之外，我需要做的是将所有平台 （例如，任何CPU，x68，x64）的C＃版本设置为7.3。
解决方案2
1 2018-08-25 15:05:45
MSbuild 15 does not support .NET Framework 4.7.2 . MSbuild 15不支持.NET Framework 4.7.2 。
Per the GitHub issue, this was merged in May: github.com/Microsoft/msbuild/issues/3285 根据GitHub问题，该文档已于5月合并： github.com/Microsoft/msbuild/issues/3285
Version 15.7.180 should work: https://github.com/Microsoft/msbuild/releases/tag/v15.7.180.61344 版本15.7.180应该可以正常工作： https : //github.com/Microsoft/msbuild/releases/tag/v15.7.180.61344
Edit: Version 15.8.166.59604 shipped with Visual Studio 15.8, which was released in April. 编辑：Visual Studio 15.8附带的版本15.8.166.59604 ，于4月发布。 Though, support for .NET Framework 4.7.2, was implemented in May. 但是，对.NET Framework 4.7.2的支持已在5月实现。
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