It may be the result of trying to build an “old” SDK app on a “new” toolkit. The old apps up through CUDA 4.2 had several support libraries, one of which was shrutil (something). Back in 2010 when this message was posted, it was roughly in the CUDA 4.0 timeframe and that’s the way it worked. If you see this error now on a 5.0 or newer toolkit, you probably don’t even have the libraries needed. If you’re trying to build one of the older SDK apps, just switch to the newer samples. If you’re getting this in some other app, that app was written to use/borrow a library from one of those old toolkits. If you want to build the app as-is, you’ll need to get one of those older CUDA SDK’s and install it and build it.