Unable to open waves

[Dana Kalinsky]

Hi,

I have a very simple systemverilog code https://www.edaplayground.com/x/geeb

I really don't understand why the waves file is not found. Please help.

Thanks! 

Finding VCD file...
No *.vcd file found. EPWave will not open. Did you use '$dumpfile("dump.vcd"); $dumpvars;'?

[EDA Playground]

Your code is private, so I cannot see it. But this is an example of what I call "the world's must useful error message": it is telling you the code that is (probably*) missing:

$dumpfile("dump.vcd"); $dumpvars;

You need to add these two lines of code to the beginning of an existing initial block or to a separate, dedicated initial block in your testbench.. 

[EDA Playground]

Thank you for making your code public. I can see the problem. As you say, these lines are not missing. Instead, you have inadvertently selected "SVLib" in the "Other Libraries" section on the left. Please select "none" instead.

BTW: you need some delays in your input stimulus. At the moment no time is consumed and will will get a message saying "Warning: Only a single slice of data found. Did you specify valid 'From/To' times?".