Deployment issue

Question

Hi,
What is the reason below, when deploying the project?

System.AggregateException: One or more errors occurred. ---> Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.
--- End of inner exception stack trace ---
---> (Inner Exception #0) Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.<---

Microsoft.WebTools.Shared.Exceptions.WebToolsException: Build failed. Check the Output window for more details.

Answer 1

Hi @Peter_1985 ,

What is the reason below, when deploying the project?

It looks like you are trying to publish your project somewhere. As mentioned, it would be helpful if you could provide more relevant details. For example, are you using visual studio to publish your webapp? What version is it? What project is your webapp? WebForms, .net mvc or .net core or something else?

I tested publishing WebForms project to Folders in Visual studio 2022, and it works fine. I suggest that you carefully read the error message given by the ** Output Window **, solve these problems one by one.

In addition, based on the .NET framework version, you could upgrade Microsoft.Net.Compilers.Toolset if it not the latest version. Something like this:

Best regards,
Xudong Peng

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Answer 2

There is not enough info here to help you figure out the issue. Does the website build in Visual Studio

Answer 3

A System.AggregateException with "Error MSB4094 non è un valore valido per il parametro InputManifest dell'attività GenerateApplicationManifest. Non è possibile passare più elementi in un parametro di tipo Microsoft.Build.Framework.ITaskItem"

was solved in Microsoft Visual Studio Community 2022 (64 bit)17.10.4 by:

Project >> Properties >> tab Publish >> deselect "Publishing"

Answer 4

i had same problem and i solve it by check the "trim unused code" checkbox in (profile settings → File Publish Options). Best regards.