运行MGCB报错、编辑器异常，MonoGame模板安装失败（macOS Sonoma+VS Code）

环境 #

• macOS Sonoma 系统
• VS Code 开发 MonoGame 项目

打开content.mgcb时的NuGet错误 #

输出窗口出现以下错误：

Users/<name>/Desktop/code/games/monogame/MyGame/MyGame.csproj : warning NU1803: You are running the 'restore' operation with an 'HTTP' source, 'http://teamcity.monogame.net/guestAuth/app/nuget/feed/_Root/default/v3/index.json'. Non-HTTPS access will be removed in a future version. Consider migrating to an 'HTTPS' source. [/Users/<name>/Desktop/code/games/monogame/MyGame/MyGame.sln]
/usr/local/share/dotnet/sdk/8.0.100/NuGet.targets(156,5): error : Unable to load the service index for source http://teamcity.monogame.net/guestAuth/app/nuget/feed/_Root/default/v3/index.json. [/Users/<name>/Desktop/code/games/monogame/MyGame/MyGame.sln]
/usr/local/share/dotnet/sdk/8.0.100/NuGet.targets(156,5): error :   Network is unreachable (teamcity.monogame.net:80) [/Users/<name>/Desktop/code/games/monogame/MyGame/MyGame.sln]
/usr/local/share/dotnet/sdk/8.0.100/NuGet.targets(156,5): error :   Network is unreachable [/Users/<name>/Desktop/code/games/monogame/MyGame/MyGame.sln]

编辑器异常与闪退 #

• 编辑器显示异常
• 右键点击项目窗口时VS Code直接闪退（截图：编辑器异常截图）
• 问题日志存在异常（截图：问题日志异常截图）

安装MonoGame模板时的错误 #

运行dotnet new --install MonoGame.Templates.CSharp时出现以下错误：

MonoGame.Templates.CSharp (version 3.8.1.303) is already installed, it will be replaced with latest version.
MonoGame.Templates.CSharp::3.8.1.303 was successfully uninstalled.
Warning: The NuGet sources http://teamcity.monogame.net/guestAuth/app/nuget/feed/_Root/default/v3/index.json are insecure and will not be searched. If you want to include those sources for search, use --force.
Error: Failed to load template from /Users/<name>/.templateengine/packages/MonoGame.Templates.CSharp.3.8.1.303.nupkg(/content/content/MonoGame.Application.UWP.CoreApp.CSharp/.template.config/template.json).
Details: 'identity' is missing or is an empty string.
Success: MonoGame.Templates.CSharp::3.8.1.303 installed the following templates:

1. 替换不安全的NuGet源 #

teamcity.monogame.net的HTTP源已无法访问，且属于不安全协议，需替换为官方HTTPS源：

• 终端执行命令移除旧源：

  # 先查看所有源，找到对应teamcity的源名称
  dotnet nuget list source
  # 移除旧源，替换为实际源名称
  dotnet nuget remove source "TeamCity MonoGame"
  

• 添加官方NuGet源（若已存在可跳过）：

  dotnet nuget add source https://api.nuget.org/v3/index.json --name "NuGet.org"
  

2. 修复模板安装问题 #

旧模板缓存损坏且依赖不可访问源，执行以下步骤：

• 清理旧模板缓存：

  rm -rf /Users/<name>/.templateengine/packages/MonoGame.Templates.CSharp*
  

  替换<name>为你的系统用户名。
• 重新安装最新模板，指定官方源：

  dotnet new --install MonoGame.Templates.CSharp --nuget-source https://api.nuget.org/v3/index.json
  

3. 修复项目还原问题 #

进入项目目录重新执行NuGet还原：

cd /Users/<name>/Desktop/code/games/monogame/MyGame
dotnet restore

若项目文件硬编码了teamcity源，打开MyGame.csproj或Directory.Packages.props，移除包含http://teamcity.monogame.net的配置项。

4. 解决VS Code闪退问题 #

• 关闭VS Code，删除工作区缓存：

  rm -rf /Users/<name>/Library/Application\ Support/Code/User/workspaceStorage/
  

• 更新VS Code及MonoGame相关扩展到最新版本
• 重新打开项目，确认NuGet还原无错误后再进行右键操作

内容的提问来源于stack exchange，提问作者MCB