Report View - Could not load file or assembly ...

Question

I use VS2008 to develop a web application.

When I open a local report, it's report datasource does not show. I click the report->DataSource to see it's datasource, but it appear an error message:

"Could not load file or assembly ### " But the file or assembly does exist.

How can I solve this problem?

I searched everywhere and didnt found a solution for this.

Thanks.

Answer 1

The assembly may exist but in a place not seen by the app. Use filemon / procmon to find out where your app is trying to load the assembly from and you will have a clue of what's going on. Also make sure the assembly version matches as well.

Answer 2

Hi, i fix this when i make the required assembly com-visible.