dotnet ef not found in NET Core 3

Question

I m following the docs in order to create an initial migration  When I execute dotnet  I get the help section  meaning that the PATH works properly   Then I try to execute the command below from the docs in console window   dotnet ef migrations add InitialCreate     I get the following error      Could not execute because the specified command or file was not found    Possible reasons for this include        You misspelled a built-in dotnet command        You intended to execute a  NET Core program  but dotnet-ef does not exist        You intended to run a global tool  but a dotnet-prefixed executable with this name could not be found on the PATH           I excluded the first item since I copied the command    I excluded the second item because the package Microsoft EntityFrameworkCore SqlServer is installed    I excluded the third item because I get the help section when invoking dotnet       I m googling the issue but since the version is new  there s not much to go on and or it s drowning in similar issues from earlier versions   I tried to forcibly install Microsoft EntityFrameworkCore just in case it needs to be explicitly added  I ran into the error message telling me that the latest version to pick from is 2 2 6 and a downgrade is a no-go  I m not sure how to install the version compatible with the SQL-package I have on my system already  and even less certain if that s right approach to kill this issue       Detected package downgrade  Microsoft EntityFrameworkCore from 3 0 0-preview6 19304 10 to 2 2 6  Reference the package directly from the project to select a different version    Web -    Microsoft EntityFrameworkCore SqlServer 3 0 0-preview6 19304 10 -    Microsoft EntityFrameworkCore Relational 3 0 0-preview6 19304 10 -    Microsoft EntityFrameworkCore     3 0 0-preview6 19304 10    Web -  Microsoft EntityFrameworkCore     2 2 6

User · Answer

EDIT  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

User · Answer

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

User · Answer

I had the same problem  I resolved  uninstalling all de the versions in my pc and then reinstall dotnet

User · Answer

if your using snap package dotnet-sdk on linux this can resolve by updating your   bashrc   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

User · Answer

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  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

User · Answer

For me  The problem was solved after I close Visual Studio and Open it again

User · Answer

I was having this problem after I installed the dotnet-ef tool using Ansible with sudo escalated previllage on Ubuntu  I had to add become  no for the Playbook task  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

User · Answer

For everyone using  NET Core CLI on MinGW MSYS  After installing using dotnet tool install --global dotnet-ef  add this line to to bashrc file c  msys64 home username   bashrc  location depend on your setup  export PATH  PATH  c Users username  dotnet tools

User · Answer

Run PowerShell or command prompt as Administrator and run below command      dotnet tool install --global dotnet-ef --version 3 1 3

[c#] dotnet ef not found in .NET Core 3

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