qt项目找不到插件 - 通过qmlproject文件中的importPaths设置？

Question

客户从Qt Creator 2.6.1提供了QML项目v1.1，但找不到其中一个插件的导入路径：

我把它设置为：

importPaths: [ "plugins/com/myCustomer/hmiframework"]

这是.dll文件的目录，但qml文件找不到libs。

我在导入代码上收到此错误：

 import com.myCustomer.hmiframework 1.0

这是错误：

Error while loading project file C:/Users/elswick/Documents/Customers/myCustomer/docs/project/name/project.qmlproject.
file:///C:/Users/elswick/Documents/Customers/myCustomer/project/name/project.qmlproject:20 Property value set multiple times

不知道从哪里开始。选择Design时显示的错误是：

QML module not found

Import paths:
C:/Users/elswick/Documents/Customers/myCustomer/docs/project/name/plugins/com/myCustomer/hmiframework

For qmake projects, use the QML_IMPORT_PATH variable to add import paths.
for qmlproject projects, use the importPaths property to add import paths. (2:1)

谢谢。