Error: (vcom-11) while running RTL simulation in Modelsim INTEL FPGA STARTER EDITION

Hi,

I try to compile those files attached directly in modelsim starter edition and get library not found error in SPI_16bit_CS.vhd

** Error: .../SPI_16bit_CS.vhd(36): (vcom-1598) Library "altera_syn_attributes" not found.

Which further triggers the error in SPI_16bit_CS_TB.vhd compilation

** Error: (vcom-11) Could not find work.spi_16bit_cs.

The simulation can run properly after commenting out the library. Make sure the proper library is existing.

Best Regards,

Sheng

p/s: If any answer from community or Intel support are helpful, please feel free to mark as solution and give Kudos.