问。。。 nd for logger (com.qcloud.vod.VodUploadClient？

这是报错信息：

log4j:WARN No appenders could be found for logger (com.qcloud.vod.VodUploadClient).

log4j:WARN Please initialize the log4j system properly.

log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.

Exception in thread "main" java.lang.NoSuchMethodError: org.apache.http.impl.conn.PoolingHttpClientConnectionManager.setValidateAfterInactivity(I)V

at com.qcloud.cos.http.DefaultCosHttpClient.initHttpClient(DefaultCosHttpClient.java:75)

at com.qcloud.cos.http.DefaultCosHttpClient.<init>(DefaultCosHttpClient.java:69)

at com.qcloud.cos.COSClient.<init>(COSClient.java:182)

at com.qcloud.cos.COSClient.<init>(COSClient.java:175)

at com.qcloud.vod.VodUploadClient.upload(VodUploadClient.java:75)

at com.fengz.tool.Testa.main(Testa.java:29)