Internal Error: Sub-system: ATCL, File: /quartus/ccl/atcl/atcl_root.cpp, Line: 987

Description

Due to a problem in the Intel® Quartus® Prime Pro edition software version 19.2 for Windows*, you may see this internal error message when the fitter stage is being executed.

The internal error description will include a DLL module that could not be found by Windows* operating system. e.g.

ERROR: Can't load library: c:\\intelfpga_pro\19.2\quartus\bin64\fitter_fdrgn.dll. The operating system reports the following error: The specified module could not be found.

Resolution

To work around this problem, install the Visual C Redistributable Packages for Visual Studio 2013 from the following link.