Visual Studio 2008 References too long?

Question

I have recently re-organised our source control and found one of our solutions no longer builds. The only error that we get is:

Error 65 Unknown bui

Answer 1

I think what's likely happening here is that one of your projects is using a relative hint path that is going very far back up the tree and then back down the directory structure. For example

c:\foo\bar\baz\..\..\..\some\other\dir\foo.dll

Even though the path to the actual file is less than 256 the relative goop makes it much longer.

The best way to find these is to search all of your .csproj / .vbproj files for the string ..\..\. See if that turns up any results.