Error Opening Posts with Gutenberg 3.7.0 Plugin

[MikeB8s]

• I've read and understood the contribution guidelines.
• I've searched for any related issues and avoided creating a duplicate issue.

Please give us a description of what happened.

After installing and activating Gutenberg plugin version 3.7.0 (31 Aug 2018), unable to open any posts. The post-edit screen displays: "The editor has encountered an unexpected error." and three buttons: Attempt Recovery, Copy Post Text, and Copy Error

Please describe what you expected to happen and why.

Open any posts.

How can we reproduce this behavior?

1.Install and activate Yoast plugin
2 Install and activate Gutenberg plugin 3.7.0.
3.Try to edit a post

Technical info

• WordPress version: 4.9.8
• Yoast SEO version: 8.1

• If relevant, which editor is affected (or editors):

• Classic Editor
• [X ] Gutenberg
• Classic Editor plugin

• Which browser is affected (or browsers):

• IE11
• Edge
• [X ] Chrome
• Firefox
• Safari

• Relevant plugins in case of a bug:

• Tested with theme: Twenty Seventeen and Genesis Sample

[maxxer]

Full error log:

TypeError: "wp.api is undefined"
valuehttps://web.site/wp-content/plugins/wordpress-seo/js/dist/wp-seo-post-scraper-810.min.js?ver=8.1:1:145335valuehttps://web.site/wp-content/plugins/wordpress-seo/js/dist/wp-seo-post-scraper-810.min.js?ver=8.1:1:144546jchttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:134:121gchttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:127:223vbhttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:230ubhttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:65zdhttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:124:449rahttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:123:319enqueueSetStatehttps://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:189:231setStatehttps://web.site/wp-content/plugins/gutenberg/vendor/react.min.ab6b06d4.js:18:428unsubscribehttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:64269ehttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:59091ehttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:59062dhttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:47046nhttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:60168whttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:37445_invokehttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:37235nhttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:37621ohttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:30021chttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:30223uhttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:42913Ahttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:43058shttps://web.site/wp-content/plugins/gutenberg/build/data/index.js?ver=1535734400:1:41327 react-dom.min.82e21c65.js:110:57
	bg https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:110:57
	ig/c.callback https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:116:178
	Jf https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:73:98
	Kf https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:73:408
	jc https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:134:379
	gc https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:127:223
	vb https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:230
	ub https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:126:65
	zd https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:124:449
	ra https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:123:319
	enqueueSetState https://web.site/wp-content/plugins/gutenberg/vendor/react-dom.min.82e21c65.js:189:231
	q.prototype.setState https://web.site/wp-content/plugins/gutenberg/vendor/react.min.ab6b06d4.js:18:428
	value/this.unsubscribe< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:64269
	e/</< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:59091
	e/< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:59062
	d https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:47046
	n/< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:60168
	w https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:37445
	x/i._invoke</< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:37235
	S/</t[n] https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:37621
	o https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:30021
	c https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:30223
	u https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:42913
	A/< https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:43058
	s https://web.site/wp-content/plugins/gutenberg/build/data/index.js:1:41327

[maxxer]

I don't know if this PR can be related.

[maxxer]

See #10880 and WordPress/gutenberg#9381

[abotteram]

Thank you for reporting this issue. This error has been solved in Yoast SEO 8.1.1, please upgrade to the latest version. If this does not solve the issue, please create a new issue.