选择图片绘制图片到画布报错

开发者工具可以，真机调试报以下错误

Unhandled promise rejection TypeError: n.Canvas is not a constructor

    at t.value (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:2058425)

    at t.value (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:1719584)

    at A (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:1719750)

    at t.value (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:1719861)

    at eval (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:2408781)

    at new m (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:67407)

    at DI (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:2408743)

    at eval (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:2410207)

    at Array.forEach (<anonymous>)

    at n (eval at n.call.document (runtime.js?devtools_ignore=true:1), <anonymous>:2:2410185)

涉及到两个在线项目核心功能无法使用，请求支援