「.NET」の版間の差分
Kusanaginoturugi (トーク | 投稿記録) (→Telemetry: 和訳) |
Kusanaginoturugi (トーク | 投稿記録) (→Troubleshooting: タイトルだけ和訳) |
||
| 54行目: | 54行目: | ||
テレメトリはデフォルトで有効になっていますが、[[環境変数|環境変数の設定]]により無効にできます。{{ic|1=DOTNET_CLI_TELEMETRY_OPTOUT=1}} |
テレメトリはデフォルトで有効になっていますが、[[環境変数|環境変数の設定]]により無効にできます。{{ic|1=DOTNET_CLI_TELEMETRY_OPTOUT=1}} |
||
| + | == トラブルシューティング == |
||
| − | == Troubleshooting == |
||
=== It was not possible to find any compatible framework version === |
=== It was not possible to find any compatible framework version === |
||
2020年9月30日 (水) 12:05時点における版
.NET Core は Microsoft 製の新しいオープンソース C#, Visual Basic, F# ソフトウェアフレームワークです。先行の .NET Framework と異なり、クロスプラットフォームで動作し近代的なアプリケーションに適した設計が行われています。
目次
インストール
.NET Core で管理されるアプリケーションを実行したいだけの場合は dotnet-runtime パッケージをインストールしてください。
.NET Core でアプリをビルドする場合は dotnet-sdk パッケージもインストールしてください。
Microsoft は .NET Core アプリをビルド・デバッグするときは Electron ベースのオープンソース IDE である Visual Studio Code を使うことを推奨しています。
手動による複数バージョンのインストール
You can install multiple versions of the .NET Core SDK or runtime side by side by using the dotnet-install.sh script provided by the .NET Foundation. You can find the documentation of the script here.
For instance, this command would install the latest version found in the "current" channel in /usr/share/dotnet:
# ./dotnet-install.sh --install-dir /usr/share/dotnet -channel Current -version latest
You may want to simulate the installation first by using the -Dryrun flag.
Once installed, you can verify the SDKs available:
$ dotnet --list-sdks 2.2.108 [/usr/share/dotnet/sdk] 3.0.103 [/usr/share/dotnet/sdk] $ dotnet --version 3.0.103
AURによる複数バージョンのインストール
Some of the AUR dotnet packages are made to be installed alongside each other. Only one host package (dotnet-host-binAUR or dotnet-host) is needed containing the command-line tool and you can install any of the available SDKs and Runtimes (latest packages of all major versions) next to it. List of compatible packages:
- dotnet-host-binAUR, dotnet-runtime-binAUR, aspnet-runtime-binAUR, dotnet-sdk-binAUR
- dotnet-host-previewAUR, dotnet-runtime-previewAUR, aspnet-runtime-previewAUR, dotnet-sdk-previewAUR
- dotnet-runtime-3.0AUR, aspnet-runtime-3.0AUR, dotnet-sdk-3.0AUR,
- dotnet-runtime-2.2AUR, aspnet-runtime-2.2AUR, dotnet-sdk-2.2AUR, dotnet-sdk-2.2-vs2017AUR
- dotnet-runtime-2.1AUR, aspnet-runtime-2.1AUR, dotnet-sdk-2.1AUR
PowerShell Core のインストール
You can install PowerShell Core as a "global" tool also [1] [2]
# dotnet tool install --global PowerShell
to update to current version
# dotnet tool update --global PowerShell
テレメトリ
テレメトリはデフォルトで有効になっていますが、環境変数の設定により無効にできます。DOTNET_CLI_TELEMETRY_OPTOUT=1
トラブルシューティング
It was not possible to find any compatible framework version
If you get the following error when you try to run a newly created project, you no longer need to set a DOTNET_ROOT variable as described in the solutions of various GitHub issues. Arch's dotnet package (as of 3.1) installs it to the Microsoft recommended location of /usr/share/dotnet.
$ dotnet run
It was not possible to find any compatible framework version The framework 'Microsoft.AspNetCore.App', version '3.1.0' was not found. - No frameworks were found. You can resolve the problem by installing the specified framework and/or SDK. The specified framework can be found at: - https://aka.ms/dotnet-core-applaunch?framework=Microsoft.AspNetCore.App&framework_version=3.1.0&arch=x64&rid=arch-x64
This is caused because the runtime is shipped as a separate package in Arch. You just need to make sure you have the aspnet-runtime package installed as well.
"the required library libhostfxr.so could not be found" error
Some of the dotnet SDK tools (for example libman, dotnet-watch etc.) may expect you to have the environment variable DOTNET_ROOT pre-configured. If it's not, an error like this one could be observed: [3]
A fatal error occurred, the required library libhostfxr.so could not be found. If this is a self-contained application, that library should exist in [/home/my_user/.dotnet/tools/.store/microsoft.web.librarymanager.cli/1.0.172/microsoft.web.librarymanager.cli/1.0.172/tools/netcoreapp2.1/any/]. If this is a framework-dependent application, install the runtime in the default location [/usr/share/dotnet] or use the DOTNET_ROOT environment variable to specify the runtime location.
The workaround is to manually export DOTNET_ROOT in your shell:
~/.bashrc
export DOTNET_ROOT=/opt/dotnet
SDK specified could not be found
This is believed to caused by a conflict between the Mono and MSBuild SDK libs and the dotnet core ones. To fix this export the path manually in your shell (replacing the version number as necessary) e.g:
~/.bashrc
export MSBuildSDKsPath=$( echo /usr/share/dotnet/sdk/3.*/Sdks );