Can not run HLS example "QRD" - Can not run HLS example "QRD" Hi, I tried to run the example "QRD": cd C:\intelFPGA\18.1\hls .\init_hls.bat cd C:\intelFPGA\18.1\hls\examples\QRD .\build.bat test-x86-64 i++ -ffp-contract=fast -ffp-reassoc -march=x86-64 MGS.cpp QRD_Testbench.cpp TestbenchHelpers.cpp -o test-x86-64.exe In file included from MGS.cpp:4: In file included from ./MGS.h:7: In file included from C:/intelFPGA/18.1/hls/include\HLS/hls.h:22: In file included from C:/intelFPGA/18.1/hls/include\HLS/internal/_stream.h:17: C:/intelFPGA/18.1/hls/include\HLS/internal/_hls.h:37:10: fatal error: 'type_traits' file not found #include <type_traits> ^~~~~~~~~~~~~ 1 error generated. HLS x86-64 compile FAILED. Run test-x86-64.exe to execute the test. I'm using: Quartus Prime 18.1 Standard Edition HLSProSetup-20.4.0.72-windows VS 2017 Win 10 64Bit following this user guide: https://www.intel.com/content/www/us/en/programmable/documentation/ewa1462479481465.html#ewa1462816501221 and i found the similar problem: https://community.intel.com/t5/Intel-High-Level-Design/Cannot-run-HLS-Compile-example-quot-counter-quot/m-p/683928#M480 I have already check my windows MSVC2017 register entry point, that is correct. Any suggestions about this problem? Replies: Re: Can not run HLS example "QRD" Hi , Good to know that the issue is resolved. Thanks for sharing the solution to community. Thanks and Regards Anil Replies: Re: Can not run HLS example "QRD" i use other command window, problem is solve. Replies: Re: Can not run HLS example "QRD" upgrade my Quartus to Quartus Prime Pro 20.4, the issue still exists. any suggestions?