图片捕获失败

[zhilianyun889]

[Enter steps to reproduce:]

1. ...
2. ...

Atom: 1.52.0 ia32 Electron: 6.1.12 OS: Unknown Windows version Thrown From: amWiki package 1.2.1

Stack Trace

Uncaught TypeError: img.toPng is not a function

At C:\Users\MINN\.atom\packages\amWiki\lib\richPaste.js:109

TypeError: img.toPng is not a function
    at Object._pasteImg (/packages/amWiki/lib/richPaste.js:109:33)
    at Object.paste (/packages/amWiki/lib/richPaste.js:66:22)
    at /packages/amWiki/lib/main.js:168:35)
    at CommandRegistry.handleCommandEvent (F:/文库/Atom/resources/app/static/<embedded>:11:349963)
    at CommandRegistry.dispatch (F:/文库/Atom/resources/app/static/<embedded>:11:348438)
    at AtomEnvironment.dispatchApplicationMenuCommand (F:/文库/Atom/resources/app/static/<embedded>:1:765613)
    at EventEmitter.t (F:/文库/Atom/resources/app/static/<embedded>:1:773536)
    at EventEmitter.emit (events.js:200:13)
    at Object.onMessage (F:/文库/Atom/resources/electron.asar/renderer/init.js:42:16)

Commands

     -0:19.5.0 core:paste (input.hidden-input)
     -0:18.9.0 core:undo (input.hidden-input)
     -0:15.3.0 docblockr:parse-enter (input.hidden-input)
     -0:15.3.0 editor:newline (input.hidden-input)
     -0:14.8.0 core:paste (input.hidden-input)
     -0:10.3.0 amWiki:paste (input.hidden-input)

Non-Core Packages

amWiki 1.2.1 
atom-beautify 0.33.4 
atom-file-icons 0.7.1 
docblockr 0.13.7 
simplified-chinese-menu 5.3.5