从首页点击进入子页时，出现无法跳转的现象，错误提示如下：

VM162:1 Page[pages/welcome/welcome] not found. May be caused by: 1. Forgot to add page route in app.json. 2. Invoking Page() in async task.

console.warn @ VM162:1

A @ WAService.js:19

Xt @ WAService.js:20

sn @ WAService.js:20

un @ WAService.js:20

(anonymous) @ WAService.js:20

(anonymous) @ WAService.js:19

L.emit @ WAService.js:8

emit @ WAService.js:6

(anonymous) @ WAService.js:9

(anonymous) @ WAService.js:6

e @ appservice?t=1539134987404:1137

n.registerCallback.t @ appservice?t=1539134987404:1137

l.forEach.t @ appservice?t=1539134987404:1137

(anonymous) @ appservice?t=1539134987404:1137

i.onmessage @ appservice?t=1539134987404:1137

WAService.js:19 Wed Oct 10 2018 09:29:49 GMT+0800 (中国标准时间) 事件警告

VM162:1 Do not have onTap handler in current page: pages/welcome/welcome. Please make sure that onTap handler has been defined in pages/welcome/welcome, or pages/welcome/welcome has been added into app.json

- 请问大神们，该怎么解决？