Global is external, but doesn't have external or weak linkage! - Global is external, but doesn't have external or weak linkage! Description Due to a problem in the HLS Compiler, you may see this error when you compile testbench code with your component and that testbench uses system library classes like fstream. Resolution To work around this problem, compile the testbench code with the Microsoft* compiler and then link it with the component CL /I%INTELFPGAOCLSDKROOT%\include /Fo /EHsc /tb.cppi comp.cpp tb.obj This problem is scheduled to fixed in a future release of the HLS Compiler. Custom Fields values: ['novalue'] Troubleshooting FB: 1408561120; False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 19.3 18.1 ['Programmable Logic Devices'] ['HLD Tools HLS Compiler'] ['novalue'] ['novalue']