ASP.NET Web Forms website build error

Question

As I try to build this project, I keep coming up with an error.

Description, where the eight '*' are always something different with every build:

An error occurred when merging assemblies: ILMerge.Merge: ERROR!!: Duplicate type 'myTypeName' found in assembly 'App_Web_********'.

and the file is

aspnet_merge

What do I need to do in order to resolve this (annoying) error?

Does it actually say Duplicate type '<>' verbatim, or is there a type-name inside the angle-brackets? — Dai
– Dai, Commented Jan 31, 2018 at 20:50
I'm guessing your WebForms project is referencing another WebForms project or otherwise references another project in the same solution or has code in App_code that is messing it up. Does the website build fine without using the merge step? — Dai
– Dai, Commented Jan 31, 2018 at 20:52

SPQR · Accepted Answer · 2018-02-01 13:06:49Z

1

A couple of things you can try is after right clicking on your project, select Publish Web App. Then under settings (settings for me, might be different for you), find your File Publish Options and click Configure. You'll see the dialog below.

Try the first or second option, Do not merge OR Do not merge. Create a separate assembly for each page and control

I know this is something that has plagued me in the past so good luck. Update us if you find any better or if something better works for you.

answered Feb 1, 2018 at 13:06

SPQR

5241 gold badge7 silver badges25 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

ASP.NET Web Forms website build error

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related