Flutter：Could not navigate to initial route.

[wanghao]

════════ Exception caught by Flutter framework ═════════════════════════════════
The following message was thrown:
Could not navigate to initial route.
The requested route name was: "/posts/132"
There was no corresponding route in the app, and therefore the initial route specified will be ignored and "/" will be used instead.

初步判断，可能跟安装了 shared_preferences 有关。

[wanghao]

跟 shared_preferences 插件没关系，是我写了一个 bug 。