“无法创建 C# 2017 编译器"打开项目时出现错误消息

quot;C# 2017 compiler could not be createdquot; error message while opening project(“无法创建 C# 2017 编译器打开项目时出现错误消息)

问题描述

我有 Visual Studio 2017 社区版.我有一个使用 Visual Studio 2015 创建的 C# 项目.当我尝试在 VS 2017 中打开该项目时，我收到错误消息提示:

I've Visual Studio 2017 community edition. I have a C# project created using Visual Studio 2015. When I try to open the project in VS 2017 I get an error message prompt:

---------- Microsoft Visual Studio

--------------------- Microsoft Visual Studio

无法打开项目dataStructureInCSharp"，因为无法创建 Visual C# 2017 编译器.请重新安装 Visual Studio.

Project 'dataStructureInCSharp' could not be opened because the Visual C# 2017 compiler could not be created. Please re-install Visual Studio.

--------------- 好的

--------------------------- OK

如果其他人遇到类似问题，我正在尝试寻求帮助.我觉得卸载然后重新安装路线对我来说非常昂贵，如果我没有其他方法，我会最后尝试该选项.

I'm trying to obtain help if anyone else has faced similar issue. I feel going the uninstall and then reinstall route is very costly for me and would try that option last if I've got no other resort.

到目前为止我做了什么:

What I've done so far :

• 尝试使用管理权限启动 Visual Studio

但问题依旧.

我尝试从头开始创建一个新的控制台项目解决方案，但在这种情况下，我得到了完全相同的错误，并且下面还显示了一个额外的错误错误:

I tried creating a new console project solution from scratch but in that case I get very same error and an additional error error also shown below:

系统环境:Windows 7 Ultimate Service Pack 1

System Environment: Windows 7 Ultimate Service Pack 1

推荐答案

可以尝试关闭所有VS 2017实例并删除文件夹%localappdata%MicrosoftVisualStudio15.0_xxxxComponentModelCache，然后打开VS创建一个新的Console项目.

You can try to close all VS 2017 instances and delete the folder %localappdata%MicrosoftVisualStudio15.0_xxxxComponentModelCache, then open VS to create a new Console project.

或者

请以管理员身份重新运行VS 2017安装程序，点击启动"按钮旁边的图标，选择修复"进行修复，如下图:

please re-run the VS 2017 installer as administrator, click the icon beside ‘Launch’ button and choose ‘Repair’ to repair as shown below:

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