Fsevents is not a function

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I can't find the problem. I read a lot of other posts, but I could not find a similar problem. Could it be that it's not allowed to create an object in another object? How I can solve this problem? So yes, album isn't a constructor inside the function. To be more precise it's undefined at this point. More generally I'd suggest to follow the Google style guide when in doubt. Learn more. Javascript: TypeError: … is not a constructor Ask Question.

Asked 7 years, 1 month ago. Active 3 years, 10 months ago. Viewed 76k times. Mark Rotteveel Active Oldest Votes. David Salamon 1, 21 21 silver badges 27 27 bronze badges. That should make it more obvious. Felix Kling: Thanks also for your help! Thanks that helped me out of bind. Nice explanation dystroy. Sign up or log in Sign up using Google.

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fsevents is not a function

Sign in to your account. System: OS: macOS Don't know why it says create-react-app: 2. Because even though chockidar depends on fsevents 1. Instead fsevents v2 gets installed which has a different API which exports a plain object new keyword breaks on it.

fsevents is not a function

Author of chokidar package said it will be fixed in upcoming v3. See reported by me, Unfortunately all these threads lead to dead-ends. I've reproduced this error on a fresh, brand new iMac and on my Windows PC. For some reason it's never drawn any attention.

It looks like Node. Giving up npm and using yarn helped me. After that I created a new project and finally i go the dev server on.

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This worked for me so well that I would recommend to any one in my situation, this morning. Please note that I have uninstalled all versions of the Node on my machine and yarn as welland then, instead of installing Node manually, installed nvm. This allows you to switch between different versions of Node easily.

Once nvm is installed run nvm install node to install the specific version I have installed This solution from amitpatil worked for me.

Same issue using node v I hope this gets fixed soon - it's very annoying to do a fresh install and have it break immediately when I try to launch the app. DominicTobias What version of node works for you? I have tried several and yet no luck. I was then able to run React without an issue. I was able to resolve the issue with npm i -S fsevents. I did not have any luck with Shahor 's fix, and I didn't try any solutions involving yarn as I don't use yarn. So chokidar 2 seems broken as pointed out in this comment.

From OP's stack trace we can't see which package uses chokidar because its run async from a callback. Go to the earliest line we have in the stack trace, and place a console. For me it was fsevents-handler. This let me see that it was watchpack that depended on chokidar 2.By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

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I used npm to install both packages into my devDependencies and change my script for test: "test": 'react-scripts test" When I run npm test, I get and error saying. So I tried to npm i fsevents but it did not help. I tried looking online but the errors there were either fsevents is not a constructor or change to yarn. Any time I did create-react-app, I got this exact error when I immediately ran 'npm test'. This worked for me if I already was committed to the React project:.

After some digging, I found out that I needed to manually install this package because CRA pumped out several. However, my bigger issue was that CRA was skipping this dependency install because it wasn't detecting xcode on my system.

I was getting these messages:. Now, any future create-react-app's should operate smoothly without needing any additional dependency installs!

Nuxt v2.7 で実行時に「TypeError: fsevents.watch is not a function」のエラーで起動できない

Additional Xcode troubleshooting here. I had the same issue after a fresh install of node and create-react-app. After some searching I found this article [1] about a known issue with running npm test. Had similar issue on OSX. If you have Homebrewjust run following command in terminal and try again:. The error "is not a constructor" might mean you tried to initialize fsevents in your code.

Most likely with the new keyword. Please review your code for this, if not let me know. Learn more. Asked 5 months ago. Active 3 months ago. Viewed 3k times. I used npm to install both packages into my devDependencies and change my script for test: "test": 'react-scripts test" When I run npm test, I get and error saying TypeError: fsevents is not a function So I tried to npm i fsevents but it did not help.

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I'm using MacOS Mojave When I run 'npm run dev' command where the nuxt starter package is located, I have 'fsevents' error, and the server doesn't work. It's a problem with fs events, and a rather annoying one at that.

Specifically this happens when you're using Node Learn more. Asked 10 months ago. Active 10 months ago. Viewed times. I already reinstall node and npm several times, but it doesn't work. Exit status 1 npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

A complete log of this run can be found in: npm ERR! GONG 2, 1 1 gold badge 17 17 silver badges 23 23 bronze badges. Active Oldest Votes. You'll need to install fsevents 1. Ohgodwhy Ohgodwhy By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm using MacOS Mojave When I run 'npm run dev' command where the nuxt starter package is located, I have 'fsevents' error, and the server doesn't work. It's a problem with fs events, and a rather annoying one at that.

Specifically this happens when you're using Node Learn more. Asked 10 months ago. Active 10 months ago. Viewed times. I already reinstall node and npm several times, but it doesn't work.

TypeError: "x" is not a constructor

Exit status 1 npm ERR! This is probably not a problem with npm. There is likely additional logging output above. A complete log of this run can be found in: npm ERR! GONG 2, 1 1 gold badge 17 17 silver badges 23 23 bronze badges. Active Oldest Votes. You'll need to install fsevents 1. Ohgodwhy Ohgodwhy 40k 8 8 gold badges 46 46 silver badges 78 78 bronze badges.

Just here to add that this worked for me as well. I had a repository that had a sub-dependency on fsevents 1. Manually installing fsevents 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Cryptocurrency-Based Life Forms.

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Already on GitHub? Sign in to your account. Chokidar fails to run due to calling new on fsevents like it's a class or function but it's not.

To Reproduce Create an app with create-react-app 3. Ah I see that chokidar uses a very old version of fsevents. Seems like the NPM that comes with Node 12 6. Ensure you are using chokidar v3 and higher! Chokidar v2 uses fsevents v1, which is deprecated. Note: you will need to use node. This was working for me Friday I'm on nodejs 10 and npm 6.

What might have caused this to start happening? I didn't update anything over the weekend. I have the same issue. Update I resolved this issue on my end by updating the create-react-app as in the migration instructions here:. I'm having the same issue on my end. ParagKadam Wow that worked thanks! Describe the bug Chokidar fails to run due to calling new on fsevents like it's a class or function but it's not. So I'm not sure how this was ever supposed to work, however it was working before I upgraded to create-react-app v3 and NodeJS v I also had the same issue though am using MacOS the issue is kind of bug.

I solved this issue by repeatedly running the commands.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. After updating to truffle 3. I reproduced the truffle serve fail on Ubuntu Operating System: Mac OS From : Workaround would be to run npm run dev instead of truffle serve. Works for me on macOS Serving static assets in. It's work. This is a duplicate of Closing for housekeeping. It's clearly not limited to non-mac platforms.

This issue is resolved. Need to use truffle unbox webpack instead of truffle init webpack. Compilation warnings encountered:. Use "constructor Transfer msg. Could not connect to your Ethereum client. Please check that your Ethereum client: - is running - is accepting RPC connections i.

Also, I could not manage to use webpack box running truffle unbox webpack I get on mentioned docker env :. Error: Something already exists at the destination. Stopping to prevent overwriting data. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. New issue. Jump to bottom. Copy link Quote reply. Expected Behavior When I return to truffle version 3. This comment has been minimized. Sign in to view.

fsevents is not a function

I see the same on osx Same here.