I need help to solve a compiling error. I googled for a solution but could not fix the problem. When I verify the code I get the following error messages: Arduino: 1.8.5 (Windows 10), Board: "Arduino/Genuino Uno" WARNING: Category '' in library Ethernet2 is not valid. Setting to 'Uncategorized' W…

Library can't use both 'src' and 'utility' compiling error

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