train.names number of names 1 that isn't equal to classes=2 in the file ./cfg/yolov4-custom.cfg

ERROR：in the file D:/darknet-master/darknet-master/build/darknet/x64/train.names number of names 1 that isn't equal to classes=2 in the file ./cfg/yolov4-custom.cfg
我的train.names中是两种类，但还是报错，请问怎么回事呢