Hi,
As u guys said.. MaxPlus is for lower end products (EPLDs etc). It also does not recognise some VHDL syntaxs.
quartus now supports almost all the @ltera products.
Be careful with Quartus... It understands only a small subset of the VHDL syntax so do not do fancy high level VHDL stuff..
You could always compile your code with Leonardo Spectrum that comes with it, it should work. But Altera will not be providing Leonardo Spectrum as of october or something like that.