uni-app hbuilder3.99 打包自定义基座后运行必报错

uni-app hbuilder3.99 打包自定义基座后运行必报错

示例代码：

还未进入项目代码，就已报错白屏

操作步骤：

1 、更新 hbuilder到 3.99
2 、打最新自定义基座
3 、启动运行

预期结果：

能正常运行

实际结果：

未执行到项目阶段

bug描述：

运行报错：

reportJSException >>> exception function:createInstanceContext, exception:white screen cause create instanceContext failed,check js stack ->
Uncaught ReferenceError: unisdk is not defined  
 at  (app-service.js:98163:10)  
 at  (app-service.js:98405:30)  
 at __webpack_require__ (app-service.js:80:30)  
 at eval (anonymous:16:49)  
 at eval (anonymous:270:30)  
 at  (app-service.js:164:1)  
 at __webpack_require__ (app-service.js:80:30)  
 at checkDeferredModules (app-service.js:46:23)  
 at webpackJsonpCallback (app-service.js:33:19)  
 at  (app-service.js:155:53)