当构建wso2 am时，在ubuntu 16.04上，使用git checkout product-apim， 并运行
mvn clean install
并且失败了，说证书被拒绝了，但不要拒绝哪一个。
输出如下：
Installing carbon.product.id 4.4.2.
Installation failed.
One or more certificates rejected. Cannot proceed with installation.
Application failed, log file location: /home/ubuntu/.m2/repository/org/eclipse/tycho/tycho-p2-runtime/0.13.0/eclipse/configuration/1465283477879.log
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO]
[INFO] WSO2 API Manager - Aggregator Module ............... SUCCESS [ 0.678 s]
[INFO] WSO2 API Manager - Styles Parent ................... SUCCESS [ 0.068 s]
[INFO] WSO2 API Manager - Styles .......................... SUCCESS [ 1.877 s]
[INFO] WSO2 Stratos API Manager - UI styles .............. SUCCESS [ 3.018 s]
[INFO] WSO2 API Manager - Multi Tenant Dashboard .......... SUCCESS [ 1.414 s]
[INFO] WSO2 Stratos API Manager - Dashboard UI ........... SUCCESS [ 1.571 s]
[INFO] WSO2 AM - Login User Interface ..................... SUCCESS [ 1.325 s]
[INFO] WSO2 API Manager - Features Parent ................. SUCCESS [ 0.031 s]
[INFO] WSO2 API Manager - Features Aggregator Module ...... SUCCESS [ 0.024 s]
[INFO] WSO2 API Manager - Styles Features ................. SUCCESS [ 0.473 s]
[INFO] WSO2 API Manager - Multi Tenant Dashboard Feature .. SUCCESS [ 1.877 s]
[INFO] WSO2 Stratos API Manager - Features Aggregator Module SUCCESS [ 0.025 s]
[INFO] WSO2 Stratos API Manager - Style Features ......... SUCCESS [ 0.678 s]
[INFO] WSO2 Stratos API Manager - Utils Features ......... SUCCESS [ 0.901 s]
[INFO] WSO2 Stratos API Manager - Dashboard UI Features .. SUCCESS [ 0.758 s]
[INFO] WSO2 Stratos API Manager - Deployment Features .... SUCCESS [ 0.652 s]
[INFO] WSO2 API Manager - P2 Profile Generation Parent .... SUCCESS [ 0.053 s]
[INFO] WSO2 API Manager - P2 Profile Generation ........... FAILURE [ 40.276 s]
------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
任何提示？谢谢！