Care must still be taken to ensure that no two programs have the same UID; such a conflict could stop a program from loading correctly, typically leading to NotFound errors.

仍应该注意，要确保任意两个程序都不会有相同的UID；这种冲突会阻止程序正确装入，通常会导致NotFound错误。

You can also examine the fault handlers for the GetCustomerDetails invoke, noting that notFound faults and transientError faults are potentially treated differently (Figure 13).

我们还可以检查用于 GetCustomerDetails 调用的错误处理程序，指明可能需要区别对待 notFound 错误和 transientError 错误（图 13）。