Just now I was trapped by the "<span class="Apple-style-span" style="font-family: arial, sans-serif; border-collapse: collapse; "><span class="Apple-style-span" style="background-color: rgb(255, 255, 255); ">Importing the main <span class="il" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(34, 34, 34); ">module</span> </span><span class="il" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; color: rgb(34, 34, 34); "><span class="Apple-style-span" style="background-color: rgb(255, 255, 255); ">twice</span><font class="Apple-style-span" size="1" style="background-color: rgb(255, 255, 255); "><span class="Apple-style-span" style="font-size: 7.23382px; ">" </span></font></span></span>problem for a while, and then I searched on web and go into here. It seems pretty good to fix this problem, since it is really difficult to find out this problem. Anyway, a module should not be initialized twice which results in that each of the objects defined in this module has TWO instances in separate modules. Accidentally people will mix up them together.<br>
<br>-- <br>Ray Allen<br>Best wishes!<br>