In&nbsp;<span style="white-space-collapse: preserve;">Acme\Acme.dsc, find [LibraryClasses] and add below line should fix the problem. </span><br /><br /><span style="white-space-collapse: preserve;">RegisterFilterLib|MdePkg/Library/RegisterFilterLibNull/RegisterFilterLibNull.inf<br /><br />Regards,<br />Adam</span>


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