Botframework-composer: Unable to execute because the specified command or file could not be found error when running Echo bot example

Created on 31 Jan 2020 · 17Comments · Source: microsoft/BotFramework-Composer

When I run the Echo Bot example I get this error message : Unable to execute because the specified command or file could not be found. Possible reasons: * You misspelled an integrated dotnet command. * You intended to run a .NET Core program, but dotnet-bin / Debug / netcoreapp2.1 / BotProject.dll does not exist. * You intended to run a global tool, but the executable with the name indicated above dotnet was not found in the PATH.

I have all the prerequisites:

Node.js: version 12.13.0
Yarn: latest stable version
Bot Framework Emulator: latest stable version
.NET Core SDK 2.2: required to test your bot

I have also .Net Core v3.1 & v 3.0 installed in my machine

R8 Bug

Source

selmi5

👍3

All 17 comments

I had a same error in my environment.
Windows Server 2016 1607
Node.js: v12.14.1
.Net Core SDK 3.2.202
Yarn 1.21.1

yomikakokei on 3 Feb 2020

It seems like a dotnet build failure. I met this problem too when I try to start a bot which is created last month. Could you try to create a new bot to see whether this still happens?

If that still not works, you can try to open and build the botproject in the bot folder and paste your detailed error message here.

luhan2017 on 3 Feb 2020

When I run the Echo Bot example I get this error message : Unable to execute because the specified command or file could not be found. Possible reasons: * You misspelled an integrated dotnet command. * You intended to run a .NET Core program, but dotnet-bin / Debug / netcoreapp2.1 / BotProject.dll does not exist. * You intended to run a global tool, but the executable with the name indicated above dotnet was not found in the PATH.

I have all the prerequisites:

Node.js: version 12.13.0
Yarn: latest stable version
Bot Framework Emulator: latest stable version
.NET Core SDK 2.2: required to test your bot

I have also .Net Core v3.1 & v 3.0 installed in my machine

Do you run it by clicking start in composer? If so, you need to use SDK version bigger than 3.0. If it still throw exception, maybe it's because dotnet build failed with some package version compatibility. you can check it by running dotnet build command under your samplebot folder.

VanyLaw on 3 Feb 2020

I'm getting this when I click on "Start Bot".

2020-02-03 18_25_22-Window

I have the following .NET Core versions installed:

Runtimes

Microsoft.AspNetCore.All 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.1.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.All 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.1.15 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.0.0-preview9.19424.4 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.0-preview2.19528.8 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 3.1.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.1.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.14 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.15 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 2.2.8 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.0.0-preview9-19423-09 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.0-preview2.19525.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.NETCore.App 3.1.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 3.0.0-preview9-19423-09 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.0-preview2.19525.6 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.0 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
Microsoft.WindowsDesktop.App 3.1.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

SDKs

2.1.803 [C:\Program Files\dotnet\sdk]
2.2.207 [C:\Program Files\dotnet\sdk]
3.0.100-preview9-014004 [C:\Program Files\dotnet\sdk]
3.1.100-preview2-014569 [C:\Program Files\dotnet\sdk]
3.1.101 [C:\Program Files\dotnet\sdk]
3.1.200-preview-014883 [C:\Program Files\dotnet\sdk]

aalmada on 3 Feb 2020

Running into the same issue with newly created Bots as well:

Note, my exception message is translated to German somehow, I guess due to my OS language.

InDieTasten on 4 Feb 2020

hi @selmi5, I found this issue is because the original version package references were remove from myget/nuget, so it will make the build failed. Try to use 4.7.2 version to bypass this issue. We will update it ASAP.

FYI.
you can change the botproject.csproj under your sample bot folder like this to bypass.

VanyLaw on 4 Feb 2020

👍1

I had a same error in my environment.
Windows Server 2016 1607
Node.js: v12.14.1
.Net Core SDK 3.2.202
Yarn 1.21.1

I could run it to use workaround which VanyLaw wrote. (I needed to install .Net Core 2.2 too.)

yomikakokei on 5 Feb 2020

@yomikakokei we will update to netcoreapp3.1 soon. At that time .Net Core 2.2 require will be removed.

VanyLaw on 5 Feb 2020

👍1

I'm also having the same issue. I wonder why the message is in Spanish. My OS is in Spanish, but the language of my browser (Chrome) is set to English.

echo-bot error1

On the other hand, when I open the solution with Visual Studio, the following errors are found:

echo-bot error2

The errors are found no matter the template I use.

hinojosachapel on 7 Feb 2020

I am also having same issue , anyone has solutions

jssuthahar on 7 Feb 2020

@jssuthahar
This issue is related with the output solution not able to compile.
Go the location of your generated bot (The one you set when creating a new bot, defaults to User Documents > Composer).
Run dotnet build in your bot directory and see the errors.
Then try to resolve the build errors. There can be a range of sources for the build not to run.
Wrongly configured Nuget sources, misaligned package version etc.
This thread has a couple of suggestions which seem to cover all the cases.
Once the build succeeds, launching the bot via Composer also works.

Good luck

InDieTasten on 8 Feb 2020

👍1

@InDieTasten, yes I have open Project in VS 2019 and modified Target version to .Net Core 2.2 and it's started Build and run the application in VS, but trying to"Start Run" in composer, its give same issue

"You intended to execute a .NET Core program, but dotnet-bin/Debug/netcoreapp2.1/BotProject.dll 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."

jssuthahar on 8 Feb 2020

Hi, Ignore my previous steps, I have just followed below one started working, I have open the project and updated ,CS project reference like below

@team: Please update Project template nuget packages, its may resolve for all the issue

jssuthahar on 8 Feb 2020

I build correct project (2.1 current), then I update all packages and build on 2.2.
I have update this line:
https://github.com/microsoft/BotFramework-Composer/blob/028775b3c5fcf8345c52203bd11269bfed558378/Composer/packages/server/src/models/connector/csharpBotConnector.ts#L153-L157

2.1 and 2.2 build correct on dotnet, but file not found.
dir is not correct, dir selected is where I save my files, not where WebApp is.

My folder projects

andreatosato on 10 Feb 2020

@andreatosato : You are correct Please don't change dot net core version .
1.Go the location of your generated bot (The one you set when creating a new bot, defaults to User Documents > Composer).

Open project in visual studio
Edit your .csproject for now(@team : maybe they will update project template later )
modify following
<PackageReference Include="Microsoft.AspNetCore.All" Version="2.1.4" /> <PackageReference Include="Microsoft.Bot.Builder" Version="4.7.1" /> <PackageReference Include="Microsoft.Bot.Builder.ApplicationInsights" Version="4.7.1" /> <PackageReference Include="Microsoft.Bot.Builder.Azure" Version="4.7.1" /> <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Adaptive" Version="4.7.1-preview" /> <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Debugging" Version="4.7.1-preview" /> <PackageReference Include="Microsoft.Bot.Builder.Dialogs.Declarative" Version="4.7.1" /> <PackageReference Include="Microsoft.Bot.Builder.Integration.ApplicationInsights.Core" Version="4.7.0-preview-191208-1" /> <PackageReference Include="Microsoft.Bot.Builder.Integration.AspNet.Core" Version="4.7.0-preview-191208-1" /> <PackageReference Include="Microsoft.Bot.Builder.Dialogs" Version="4.7.1" /> <PackageReference Include="Microsoft.Bot.Connector" Version="4.7.1" /> <PackageReference Include="MSTest.TestFramework" Version="1.4.0" /> <PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.66">
Build the solutions for now
Try maybe it will work

jssuthahar on 10 Feb 2020

👍1

<PackageReference Include="StyleCop.Analyzers" Version="1.2.0-beta.66">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
</PackageReference>

andreatosato on 10 Feb 2020

addressed in https://github.com/microsoft/BotFramework-Composer/issues/1927