<p dir="auto">Hey,<br>
So I'm a fairly new developer who had a working app until version v0.14.8, and just updated to v15.0.1 today. The update did remove a few errors/warnings I was struggling with (so a great relief there), but brought up this issue.</p>
<p dir="auto">Specifically, the app itself renders fine, with all the pages looking fine (all components, text, etc. in the right places), but is just "frozen" - completely non-functional, not allowing me to click on anything etc.</p>
<p dir="auto">The error message I see are as follows (from Chrome and Firefox):<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/12439968/14408726/7d6d4a18-febd-11e5-8d84-fb1633d1cc08.PNG"><img src="https://cloud.githubusercontent.com/assets/12439968/14408726/7d6d4a18-febd-11e5-8d84-fb1633d1cc08.PNG" alt="capture" style="max-width: 100%;"></a><br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/12439968/14408728/80ddd280-febd-11e5-9397-67bcb0f03f30.PNG"><img src="https://cloud.githubusercontent.com/assets/12439968/14408728/80ddd280-febd-11e5-9397-67bcb0f03f30.PNG" alt="capture2" style="max-width: 100%;"></a></p>
<p dir="auto">I back-tracked it to where I could and found this being the part where the "node" is coming off as null:<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/12439968/14408739/cf942208-febd-11e5-898a-75e25f008695.PNG"><img src="https://cloud.githubusercontent.com/assets/12439968/14408739/cf942208-febd-11e5-898a-75e25f008695.PNG" alt="capture3" style="max-width: 100%;"></a></p>
<p dir="auto">So I have absolutely no clue what's going on and there seems to be no hint as to what exactly is causing this issue. I will try ripping the app apart and do a thorough debugging, but wouldn't expect much from it (due to my unfamiliarity with development yet...).<br>
I really really appreciate the help in advance, and hope that this problem can contribute somewhat to improving the React ecosystem!</p>
<p dir="auto"><strong>Do you want to request a <em>feature</em> or report a <em>bug</em>?</strong><br>
BUG/ERROR</p>
<p dir="auto"><strong>What is the current behavior?</strong><br>
"Element ref was specified as a string" error when using npm link</p>
<p dir="auto"><strong>If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem. Your bug will get fixed much faster if we can run your code and it doesn't have dependencies other than React. Paste the link to your JSFiddle (<a href="https://jsfiddle.net/Luktwrdm/" rel="nofollow">https://jsfiddle.net/Luktwrdm/</a>) or CodeSandbox (<a href="https://codesandbox.io/s/new" rel="nofollow">https://codesandbox.io/s/new</a>) example below:</strong><br>
<a href="https://github.com/odrzutowiec/react-bootstrap-jest-link-bug">https://github.com/odrzutowiec/react-bootstrap-jest-link-bug</a></p>
<p dir="auto"><strong>What is the expected behavior?</strong><br>
Shouldn't error</p>
<p dir="auto"><strong>Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?</strong><br>
React 16.4 OSX 10.13 (Chrome 66, but it doesnt matter)</p>
<p dir="auto">Hello, I am really sorry for reporting this issue, but I got nowhere else to turn. Can you help me identify if there's a problem with my webpack in /lib or is this due to react-bootstrap/uncontrollable? Or just help me understand what is wrong here. I googled for two days, some people seem to have the same issue but no one received an answer or solution. I did npm ls react and it shows only one line, but im not sure if it takes into account the npm linked package.</p>
<p dir="auto">I believe this issue is related or at least similar <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="314847256" data-permission-text="Title is private" data-url="https://github.com/facebook/react/issues/12626" data-hovercard-type="issue" data-hovercard-url="/facebook/react/issues/12626/hovercard" href="https://github.com/facebook/react/issues/12626">#12626</a></p>