wx.showKeyboard is not a function

It seems like you are trying to use the `wx.showKeyboard()` function in your WeChat Mini Program, but it is not defined.

The `wx.showKeyboard()` function is only available in the WeChat app, and not in Mini Programs. In Mini Programs, you can use the `<input>` component to allow users to input text.

Here is an example of how to use the `<input>` component in a Mini Program:

<view>
  <input placeholder="Type something..." bindinput="onInput"></input>
</view>

In the above example, the `placeholder` attribute sets the initial text inside the input box, and the `bindinput` attribute attaches an event handler for when the user types something. The event handler function `onInput` can be defined in your JavaScript code to handle the user's input.