I followed the steps of this tutorial (Gyroid Minimal Surface (Grasshopper Tutorial) - YouTube) for building a gyroid and I got this problem : the Evaluate component , gives always error and tell me that both x & y parameters have invalid name and sholud use only alphanumeric characters and not to start with a number. I try to fix this error but with no result . I am a beginner ,any suggestion ? Thanks in advance !
in the display pulldown uncheck ‘Draw Full Names’
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