Chrome extension异常 chrome.runtime.sendMessage() called from a webpage must specify an Extension ID (string) for its first argument

Uncaught TypeError: Error in invocation of runtime.sendMessage(optional string extensionId, any message, optional object options, optional function callback): chrome.runtime.sendMessage() called from a webpage must specify an Extension ID (string) for its first argument.
at <anonymous>:1:16

这个异常的原因sendMessage需要等待页面加载完成，应当在页面加载完成后再行调用