Published .Net-Core App won't run

Question

I published my app for Ubuntu in dotnet 2.1 using this command:

dotnet publish -c Release -v ubuntu-x64

I have .net-core run-time on Ubuntu. when i want to run the executable in the directory it gives this error:

an assembly specified in the application dependencies manifest ... was not found

but when i go to the publish directory and run the executable it works fine. so my question is should I use the fault-free one in publish or there's an error I should fix?

EDIT (.NET CORE INFO FOR THE DEVELOPER MACHINE):

.NET Core SDK (reflecting any global.json): Version: 2.1.300 Commit: adab45bf0c

Runtime Environment: OS Name: Windows OS Version: 10.0.15063 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\2.1.300\

Host (useful for support): Version: 2.1.0 Commit: caa7b7e2ba

.NET Core SDKs installed: 1.1.8 [C:\Program Files\dotnet\sdk] 2.1.104 [C:\Program Files\dotnet\sdk] 2.1.200 [C:\Program Files\dotnet\sdk] 2.1.300 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 1.0.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 1.1.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.6 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.NETCore.App 2.1.0 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

EDIT (.NET CORE INFO FOR THE UBUNTU MACHINE):

.NET Core SDK (reflecting any global.json): Version: 2.1.300 Commit: adab45bf0c

Runtime Environment: OS Name: ubuntu OS Version: 18.04 OS Platform: Linux RID: ubuntu.18.04-x64 Base Path:
/usr/share/dotnet/sdk/2.1.300/

Host (useful for support): Version: 2.1.0 Commit: caa7b7e2ba

.NET Core SDKs installed: 2.1.300 [/usr/share/dotnet/sdk]

.NET Core runtimes installed: Microsoft.AspNetCore.All 2.1.0 [/usr/share/dotnet/shared/Microsoft.AspNetCore.All]
Microsoft.AspNetCore.App 2.1.0 [/usr/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 2.0.7 [/usr/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 2.1.0 [/usr/share/dotnet/shared/Microsoft.NETCore.App]

Answer 1

You installed the wrong .NET Core Runtime/SDK. You should install the latest .NET Core 2.1 SDK or Runtime to run your .NET Core 2.1 application correctly.

• The .NET Core 2.1 SDK version number should be v2.1.300.
• The .NET Core 2.1 Runtime version number should be v2.1.0.