Problem Details Error: Internal Error: Sub-system: DYGR, File: /quartus/ddb/dygr/dygr_place_info.cpp, Line: 3270 Stack Trace: 0x4858e: DYGR_BLK_PHYSICAL_IMPLEMENTATION::PORT_ID::operator unsigned __int64 + 0x2bc1a (DDB_DYGR) 0x1e0b0: std::_Hash<:_umap_traits><:port_id>,std::equal_to<:port_id> >,std::allocator<:pair><:port_id const=""> >,0> >::_Hashval + 0x10 (DDB_DYGR) 0x1f4ae: std::unordered_map<:port_id>,std::equal_to<:port_id>,std::allocator<:pair><:port_id const=""> > >::operator[] + 0x1e (DDB_DYGR) 0x1d45b: DYGR_BLK_PHYSICAL_IMPLEMENTATION::populate_port_info_transient_data + 0xff (DDB_DYGR) 0x184c6: DYGR_PLACE_INFO_BODY::set_transient_data_members + 0x66 (DDB_DYGR) 0x33e4b: DYGR_PLACE_INFO_BODY::load_data_from_pdb + 0x83 (DDB_DYGR) 0x15098: DYGR_DIE_INFO_BODY::load_data + 0x2a4 (DDB_DYGR) 0x1cbd3: MPP_ROOT::start + 0x573 (COMP_MPP) 0x5bea: qfit_execute_mpp + 0x42 (comp_qfit_legacy_flow) 0x52ff: QFIT_FRAMEWORK::execute + 0x21b (comp_qfit_legacy_flow) 0x267f: qfit_legacy_flow_run_legacy_fitter_flow + 0x1c7 (comp_qfit_legacy_flow) 0x14410: TclInvokeStringCommand + 0xf0 (tcl86) 0x161e2: TclNRRunCallbacks + 0x62 (tcl86) 0x17a65: TclEvalEx + 0xa65 (tcl86) 0xa6f8b: Tcl_FSEvalFileEx + 0x22b (tcl86) 0xa5646: Tcl_EvalFile + 0x36 (tcl86) 0x12606: qexe_evaluate_tcl_script + 0x376 (comp_qexe) 0x11864: qexe_do_tcl + 0x334 (comp_qexe) 0x16755: qexe_run_tcl_option + 0x585 (comp_qexe) 0x380c3: qcu_run_tcl_option + 0x1003 (comp_qcu) 0x160aa: qexe_run + 0x39a (comp_qexe) 0x16e51: qexe_standard_main + 0xc1 (comp_qexe) 0x2233: qfit2_main + 0x73 (quartus_fit) 0x12e98: msg_main_thread + 0x18 (CCL_MSG) 0x1467e: msg_thread_wrapper + 0x6e (CCL_MSG) 0x16660: mem_thread_wrapper + 0x70 (ccl_mem) 0x12761: msg_exe_main + 0xa1 (CCL_MSG) 0x287e: __tmainCRTStartup + 0x10e (quartus_fit) 0xeb93b: uaw_wcsrchr + 0xe5e7b (KERNEL32) 0x71ef7: uaw_wcsrchr + 0x6c437 (KERNEL32) 0x1bb19f: NtWaitLowEventPair + 0x1acc1f (ntdll) End-trace Executable: quartus_fit Comment: I installed a quartus on the winodws virtual machine to compile VHDL code, Analysis&Systhesis passed and reported an error(the quartus prime software quit unexpectedly) System Information Platform: windows64 OS name: Windows 10 OS version: 10.0 Quartus Prime Information Address bits: 64 Version: 18.0.0 Build: 614 Edition: Standard Edition