OMG!!! After 2 days cracking my head, u r right! No wonder i can't find similar prob in google.
Actually what I did was (when the error happen): 1. Copy "poi-3.8-beta4" folder into my project "WEB-INF\lib" 2. Refresh eclipse project explorer 3. Eclipse > Project properties > Libraries > add all poi3.8 jar 4. Eclipse > Project properties > Libraries > remove old jar which has similar initial name with poi3.8 files 5. Rebuild working space I thought eclipse render some xml file to manage the library (hence ignoring the jar hierarchy/folder) but it's not. Then what i did: 1. Copy only jar files from "poi-3.8-beta4" folder into my project "WEB-INF\lib" 2. Refresh eclipse project explorer 3. Eclipse > Project properties > Libraries > add all poi3.8 jar 4. Eclipse > Project properties > Libraries > remove old jar which has similar initial name with poi3.8 files 5. Delete old jar from "WEB-INF\lib" 6. Rebuild working space Then its working! -- View this message in context: http://apache-poi.1045710.n5.nabble.com/java-lang-ClassNotFoundException-org-apache-poi-ss-usermodel-WorkbookFactory-tp5021705p5021867.html Sent from the POI - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
