If you're using a .wua or .wux file (compressed Wii U format), this error should not appear, as those containers include all metadata.
Check the directory of your game/update to ensure the meta folder physically exists and contains the meta.xml file. If it’s missing, you may need to re-download the update or re-dump the game from your console to ensure no files were lost in the transfer process. 4. Bypass the GUI: Manual Installation Method unable to find metaxml cemu new
BOTW Update "meta.xml missing" - But It's There : r/CemuPiracy If you're using a