https://github.com/caelum/tubaina/blob/master/src/main/java/br/com/caelum/tubaina/resources/LatexResourceManipulator.java#L50-L54
I think it's not a good practice to log a warning using the text "Error" inside the message.
It's hard enough to find where the error happened and this message really doesn't help.
Anyway, I don't even think this could be considered a warning, once I'm using the same image in different chapters and I think there's no problem in it.
https://github.com/caelum/tubaina/blob/master/src/main/java/br/com/caelum/tubaina/resources/LatexResourceManipulator.java#L50-L54
I think it's not a good practice to log a warning using the text "Error" inside the message.
It's hard enough to find where the error happened and this message really doesn't help.
Anyway, I don't even think this could be considered a warning, once I'm using the same image in different chapters and I think there's no problem in it.