java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory [duplicate]
问题 This question already has answers here : java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory (2 answers) How to fix ClassNotFoundException: org.apache.commons.logging.LogFactory? (5 answers) Closed 3 years ago . I am trying to send a notification using this class FCMHelper and im getting errors errors leading me to an error in httpclient this is my code ... public void send() throws IOException{ JsonObject notificationObject = new JsonObject(); notificationObject