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我正在尝试设置 blazor 服务器端，但在尝试安装时我一直遇到这个问题

遵循微软的本教程，我在 powershell 窗口中收到此错误

PS D:\blazorTesting> dotnet new blazorserverside -o WebApplicationServerSide
Usage: new [options]

Options:
  -h, --help          Displays help for this command.
  -l, --list          Lists templates containing the specified name. If no name is specified, lists all templates.
  -n, --name          The name for the output being created. If no name is specified, the name of the current directory is used.
  -o, --output        Location to place the generated output.
  -i, --install       Installs a source or a template pack.
  -u, --uninstall     Uninstalls a source or a template pack.
  --nuget-source      Specifies a NuGet source to use during install.
  --type              Filters templates based on available types. Predefined values are "project", "item" or "other".
  --dry-run           Displays a summary of what would happen if the given command line were run if it would result in a template creation.
  --force             Forces content to be generated even if it would change existing files.
  -lang, --language   Filters templates based on language and specifies the language of the template to create.


Unable to determine the desired template from the input template name: blazorserverside.
The following templates partially match the input. Be more specific with the template name and/or language.

Templates                                 Short Name            Language      Tags
---------------------------------------------------------------------------------------------------
Blazor (server-side)                      blazorserverside      [C#]          Web/Blazor
Blazor (Server-side in ASP.NET Core)      blazorserverside      [C#]          Web/Blazor/ServerSide

Examples:
    dotnet new blazorserverside
    dotnet new blazorserverside --auth Individual
    dotnet new --help
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1 回答 1

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介绍

Dotnet preview6 sdk 附带 Blazor 服务器端模板。仅当您想创建托管、客户端或库时才需要安装模板。

要安装模板，您应该使用dotnet new -i模板的名称和可选的版本。

问题

当您添加模板时，您忘记设置模板的版本，您做了：

dotnet new -i Microsoft.AspNetCore.Blazor.Templates  # Bad. Don't copy-paste

代替：

dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.0.0-preview6.19307.2

出于这个原因，你有blazorserverside两次：每个版本一个。

解决方案

好消息，很容易修复。

第 1 步：删除错误的模板：

dotnet new -u Microsoft.AspNetCore.Blazor.Templates

第 2 步：安装 [可选] 新的。请记住，您不需要此模板来仅创建服务器端 Blazor 应用程序。

dotnet new -i Microsoft.AspNetCore.Blazor.Templates::3.0.0-preview6.19307.2

享受您的实验室。

于 2019-07-04T07:30:53.733 回答