how to get the Page instance?

...
var page = await browser.targets()[0].page();
...

when I ran the code, I got:

$ node app.js
(node:7716) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejec
tion id: 1): Error: Protocol error (Page.getFrameTree): 'Page.getFrameTree' wasn
't found undefined
(node:7716) [DEP0018] DeprecationWarning: Unhandled promise rejections are depre
cated. In the future, promise rejections that are not handled will terminate the
 Node.js process with a non-zero exit code.

My environment:

• Puppeteer 0.13.0
• Node V8.1.1
• Window 7 64bit

I tried to use Targets to instead of , but still no work.

I wonder that this kind of functions still can’t to use for now, right?

[paulirish]

just checked… Puppeteer 0.13.0 requires a Chromium version that is equivalent to Chrome 64.0.3265.0.

---

And here’s how to get a chrome version if you have a chromium revision number or a git sha:

1. get the chromium_revision in the puppeteer package.json
2. look it up on https://omahaproxy.appspot.com/ in the “Find Releases” box. (prefix it with an r)
3. A few API calls and redirects later, you’ll see the Chrome version.

[benschwarz]

@ebidel Arrived here from seeing this error and doing a bit of testing. It appears that puppeteer using Page.getFrameTree is a little problematic in some cases (I think it’s only available in Canary), so beta or stable builds of chrome will not work with puppeteer at this point in time.