Qsys now Platform designer, no error , error at same time, on wrong Avalon parameter.

Solve unaddressed issue:

edit IP core(Qsys component):

Select and move to avalon Byteenable

Now Slave interface is complete byte addressable:

Still no error but no wave and error or warning. Yes error is present.

Set to Symbol to right byte size and issue is cured

You can check on both error and correct code where reported as good. Also memory range was reported as good with misaddressed sizes.

Both odd and even word where addressing same word cell.

Here is ok than with wrong signalling was reported same size.

If more details just tell about.