Topic: Identifier '_classCallCheck' has already been declared
Expected behavior
Actual behavior the error says that a function has been declared many times Resources (screenshots, code snippets etc.)
@Bartłomiej Malanowski has there been a release with a fix for this yet? The lack of accountability from the MDB team here is incredibly troubling.
Bartłomiej Malanowski staff commented 4 years ago
The issue seems to be resolved. Could you please confirm it?
Trela pro commented 4 years ago
I can confirm - Bug doesn't seem to happen in 4.10.0 (Rails 6 + webpack)
No offence, but it took more than 6 months and we still have the same problem without any official fix. How long should we still wait for this fix to be applied ? As we can see, @bgoodfl came with a little help but the issue is still present in the official release.
lguenier free commented 4 years ago
Couldn't agree more, it's not complicated to remove duplicate functions in your official release. It feels like all the Dev from mdbootstrap have been away for the pas 6 months...
Hi,
Any temporary fix for this issue?
Thanks
This is actually a pretty major issue. It means that MDB CANNOT be used by yarn and webpack out of the box. It requires a developer manually modify the the file anytime after yarn is run. In a fully automated environment (as I have), this is untenable.
Bartłomiej Malanowski staff commented 4 years ago
This issue will be fixed in one of the nearest releases
lguenier free commented 4 years ago
I agree with @john.epperson, this is a pretty impressive bug and makes it not fully automatable...
lguenier free commented 4 years ago
@Bartłomiej Malanowski any ETR?
Bartłomiej Malanowski staff commented 4 years ago
It's still on our TODO list
pbaumhart free commented 4 years ago
Any updates on this @Bartłomiej Malanowski? This ticket has been open for 4 months
MDBootstrap staff commented 4 years ago
Right now Bartłomiej is on vacation. From my point of view, I can not guarantee it will be fixed in this release cycle. When he will be back in the office I will remember him about this topic.
lguenier free commented 4 years ago
@Piotr Obrebski @Bartłomiej Malanowski still no news? last comment was 3 weeks ago...
MDBootstrap staff commented 4 years ago
This issue is a major one and there is still a problem that we discuss. We need more time to fix this. Sorry for the inconvenience.
lguenier free commented 4 years ago
I don't really see what the issue is to fix it, you just need to remove the duplicate functions and all should be good, it's what I did on the local copy of the files, the problem with doing that is that we can't have a continuous deployment and fully automated environments...
MDBootstrap staff commented 4 years ago
We are testing if only this is the case. Until we are 100% sure that this doesn't cause any further problems we won't implement it. We know that this is the main topic of the issue.
john.epperson free commented 4 years ago
Would it be of use to you if I provided my minimum edited version of mdb.js which removes the duplicate functions? I've removed only the bare minimum possible (as best I can tell) to get it running. Would having such a template help you achieve this faster or not really?
Bartłomiej Malanowski staff commented 4 years ago
Yes, this could be useful. I also want to remind that users with access to our GitLab can submit us a Merge Request with their changes
john.epperson free commented 4 years ago
I have privately sent the modified file (due to it being a pro version and not wanting to cause an issue by posting all of that).
@kevin Berthier You can do one of the following
- follow the webpack tutorial which doesn't include mdb.js but includes the individual js files that are compiled within mdb.js
- Don't include the compiled mdb.js in your own webpack setup.
- Remove the duplicate functions. I found 4 function _classCallCheck, function _defineProperties, function _createClass, function _classCallCheck. They are exact duplicates and are why you are seeing the error. It looks like the developers all include common libraries which have these functions and they are not shaken out when MDB combines them all.
Bartłomiej Malanowski staff commented 5 years ago
I also added this issue to our bug list with high priority
bgoodfl pro commented 4 years ago
Is there a higher priority? The duplicate functions are in 4.8.2.
spidey priority commented 4 years ago
I also have the same issue when compiling MDB Pro jQuery version in Laravel Mix (Webpack core)
Bartłomiej Malanowski staff commented 4 years ago
This still wait to be fixed
I have the same error when importing the main JS file from jq-pro in my main pack with Webpack
Do you have any tutorial to setup mdb PRO with webpack ?
Bartłomiej Malanowski staff commented 5 years ago
@kevin, how can we reproduce your issue? Answering your question, this guide will help you to install MDB with Webpack: https://mdbootstrap.com/articles/jquery/md-bootstrap-webpack-tutorial/
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Resolved
- ForumUser: Free
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- Technology: MDB jQuery
- MDB Version: 4.7.5
- Device: all
- Browser: all
- OS: all
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Bartłomiej Malanowski staff commented 5 years ago
Could you please tell us more about your issue? How can we recreate it?