Fitter errors trying to convert old qpf to newer quartus/device

Hello,

I found code for a RISC-V core implementation, which is supposed to be optimized for FPGA use, Orca by VectorBlox. VectorBlox was bought out by Microchip, and their original Orca repository no longer exists, but this repository appears to be a clone of it: https://github.com/riscveval/orca-1

There are sample builds for a few different FPGA vendors including Altera (intel): https://github.com/riscveval/orca-1/tree/master/systems/de2-115

Those build instructions target a Cyclone IV FPGA with Quartus 15.0. I am trying to convert the project to an Arria 10 with Quartus 19.2.

Generating the HDL with Platform Designer (Qsys) seemed to work fine after automatically converting to an Arria 10 target. However, when trying to compile, the fitter has been getting stuck, seemingly due to various set_global_assignment calls in the system.qsf file.

First was MAX_CORE_JUNCTION_TEMP; the original value of 85 threw a fitter error, as it wasn't supported, so I changed it to 100 to get past it.

Next was "I/O standard 2.5 V is not supported for selected device family" (ID: 119028), which I tried to adjust through the pin options voltage page (based on this: https://www.intel.com/content/www/us/en/programmable/quartushelp/13.0/mergedProjects/msgs/msgs.htm ), but that didn't do anything, so I changed another line in the system.qsf: 'set_global_assignment -name STRATIX_DEVICE_IO_STANDARD' from 2.5 V to 1.8 V (based on the options from the voltage page above), which got me past that error.

Now I am stuck with the error "Some pins have illegal board trace models." (ID: 329006), which itself contains over 100 of error ID: 20403, both "Global setting for OUTPUT_IO_TIMING_NEAR_END_VMEAS is not supported. Please use this setting with pin assignments." and the same but with ..._FAR_END_VMEAS. I see another set_global_assignment related to this in the system.qsf file here:

orca-1/systems/de2-115$ grep -ni 'OUTPUT_IO' system.qsf
116:set_global_assignment -name OUTPUT_IO_TIMING_NEAR_END_VMEAS "HALF VCCIO" -fall
117:set_global_assignment -name OUTPUT_IO_TIMING_NEAR_END_VMEAS "HALF VCCIO" -rise
118:set_global_assignment -name OUTPUT_IO_TIMING_FAR_END_VMEAS "HALF SIGNAL SWING" -fall
119:set_global_assignment -name OUTPUT_IO_TIMING_FAR_END_VMEAS "HALF SIGNAL SWING" -rise

Continuing on this path, how could I get past this error?

Conversely, is there a better way for converting from an old qpf for an old device to a newer device/quartus?

I'm sure my hacks so far are not standard practice, so any suggestions would be appreciated. Thanks!