If your project contains VHDL 2008 files, you also have to use the 2008 version of the STD and IEEE libraries.
- Make sure your project is set to VHDL 2008 :
Right click your project and select Properties > VHDL version - Right click the Common Libraries folder of your Sigasi Studio project and select Set Library > Reset Common Libraries
Sigasi Studio 3.6 will offer a quick-fix to make this easier.
See also
- Sigasi's Software Development Kit Part 2 (legacy)
- Sigasi's Software Development Kit Part 1 (legacy)
- Using the util package from Modelsim with VHDL 2008 (blog post)
- VHDL IEEE 1076-2008 Grammar (blog post)
- Using Sigasi Studio's Graphics Configuration (legacy)