Command dotnet ef not found

See the announcement for ASP.NET Core 3 Preview 4, which explains that this tool is no longer built-in and requires an explicit install:

The dotnet ef tool is no longer part of the .NET Core SDK This change allows us to ship dotnet ef as a regular .NET CLI tool that can be installed as either a global or local tool. For example, to be able to manage migrations or scaffold a DbContext, install dotnet ef as a global tool typing the following command:

dotnet tool install --global dotnet-ef

To install a specific version of the tool (see all available versions at nuget.org), use the following command:

dotnet tool install --global dotnet-ef --version 3.1.4

The reason for the change is explained in the docs:

Why This change allows us to distribute and update dotnet ef as a regular .NET CLI tool on NuGet, consistent with the fact that the EF Core 3.0 is also always distributed as a NuGet package.

In addition, you might need to add the following NuGet packages to your project:

Microsoft.EntityFrameworkCore.SqlServer

Microsoft.EntityFrameworkCore.Design

Microsoft.EntityFrameworkCore.Tools

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If you are using a Dockerfile for deployments these are the steps you need to take to resolve this issue.

Change your Dockerfile to include the following:

FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS build-env
ENV PATH $PATH:/root/.dotnet/tools
RUN dotnet tool install -g dotnet-ef --version 3.1.1

Also change your dotnet ef commands to be dotnet-ef

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I solved this problem by installing dotnet-f tool locally with the following commands.

If you are setting up this repository

dotnet new tool-manifest

dotnet tool install --local dotnet-ef --version 5.0.6

Then use dotnet dotnet-ef instead of dotnet-ef.

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Global tools can be installed in the default directory or in a specific location. The default directories are: Linux/macOS ---> $HOME/.dotnet/tools Windows ---> %USERPROFILE%\.dotnet\tools If you're trying to run a global tool, check that the PATH environment variable on your machine contains the path where you installed the global tool and that the executable is in that path.

Troubleshoot .NET Core tool usage issues

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For everyone using .NET Core CLI on MinGW MSYS:

After installing using

dotnet tool install --global dotnet-ef

add this line to to the bashrc file (C:\msys64\home\username\ - .bashrc (the location depends on your setup)

export PATH=$PATH:/c/Users/username/.dotnet/tools

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Run PowerShell or a command prompt as administrator and run the below command.

dotnet tool install --global dotnet-ef --version 3.1.3

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This will work for me on Visual studio code, in Ubuntu

dotnet tool install --global dotnet-ef
dotnet tool restore

After that all the execution are done like

dotnet tool run dotnet-ef

or

dotnet dotnet-ef

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If you're using Snap package dotnet-sdk on Linux, this can be resolved by updating your ~.bashrc file / etc. as follows:

#!/bin/bash
export DOTNET_ROOT=/snap/dotnet-sdk/current
export MSBuildSDKsPath=$DOTNET_ROOT/sdk/$(${DOTNET_ROOT}/dotnet --version)/Sdks
export PATH="${PATH}:${DOTNET_ROOT}"
export PATH="$PATH:$HOME/.dotnet/tools"

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The reason is - The dotnet ef tool is no longer part of the .NET Core SDK in ASP.NET Core 3.0.

Solution: Install dotnet ef as a global tool

Steps:

Run PowerShell or command prompt as Administrator in the project root Run below command.

For the latest version:

dotnet tool install --global dotnet-ef

For a specific version:

dotnet tool install --global dotnet-ef --version <>

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I was having this problem after I installed the dotnet-ef tool using Ansible with sudo escalated privilege on Ubuntu. I had to add become: no for the Playbook task, and then the dotnet-ef tool became available to the current user.

  - name: install dotnet tool dotnet-ef
    command: dotnet tool install --global dotnet-ef --version {{dotnetef_version}}
    become: no

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Sometimes it may occur due to different users within a system.

So to resolve the problem, you can install the dotnet-ef locally in your solution rather than adding it globally.

Steps to install locally.

Create a local manifest file via dotnet new tool-manifest Go to the config folder: cd .\.config Install the tool via dotnet tool install dotnet-ef --version versionNumber. It'll be successfully installed and its commands will be accessible within the project.

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I had the same problem. I resolved it by uninstalling all the versions on my PC and then reinstalling dotnet.

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I followed these steps, and it worked fine for me:

Add a source: dotnet nuget add source --name nuget.org https://api.nuget.org/v3/index.json Run the installation command line: dotnet tool install --global dotnet-ef --version 5.0.6

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If you ask yourself what versions are available:

Versions tab on this page: https://www.nuget.org/packages/dotnet-ef/

Besides that as others already mentioned it's:

dotnet tool install --global dotnet-ef --version 5.0.11

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you can run this command

dotnet tool install dotnet-ef -g

then every things will works good :)

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