android - eclipse debug時出現 INSTALL_PARSE_FAILED_NO_CERTIFICATES

[2013-07-12 19:35:48 - XXXProject] Installation error: INSTALL_PARSE_FAILED_NO_CERTIFICATES
[2013-07-12 19:35:48 - XXXProject] Please check logcat output for more details.
[2013-07-12 19:35:48 - XXXProject] Launch canceled!

若有include 3rd的.jar 有可能是因為.jar中有與現有專案重複名稱的檔案存在(ex: resource file)