IllegalArgumentException：'不支持的类文件主要版本56'

Question

我是火花的初学者。我想进行机器学习，所以我想了解这个错误

(train_data, test_data, predict_data) = Churn_clean.randomSplit([0.8, 0.18, 0.02], 24) print("Number of records for training: " + str(train_data.count())) print("Number of records for evaluation: " + str(test_data.count())) print("Number of records for prediction: " + str(predict_data.count()))

IllegalArgumentException: 'Unsupported class file major version 56'