Forum Discussion
In case anyone else has a similar problem, I fixed my issue by realizing that it was an issue with the libraries in the HLS compiler not being recognized. So I looked up the documents and realized that I did not have the correct version of Visual Studio downloaded (if using Windows) to support the quartus version I was running. Quartus only supports older versions of Visual Studio and their libraries. This might not fix the specific issue above, but with the issue I had, I simply had to download the correct version of VS (2010 for Quartus/HLS 18.0). Then Quartus was able to find and use the correct libraries it needed to generate the IP Cores. This information came from the Intel HLS compiler release notes, version 18.0 linked here: https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/rn/archives/rn-hls-18-0.pdf
Hope this helps some others!