Truffle: fsevents not available for non-Mac platforms (bundling issue)

Created on 14 Jun 2017 · 57Comments · Source: trufflesuite/truffle

λ truffle serve
Serving static assets in .build on port 8080...
C:UsersCatAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:119780
return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
at createFSEventsInstance (C:UsersCatAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:119780:11)
at setFSEventsListener (C:UsersCatAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:119834:16)
at FSWatcher.FsEventsHandler._watchWithFsEvents (C:UsersCatAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:119998:16)
at FSWatcher. (C:UsersCatAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:120132:25)
at gotStat (fs.js:1737:21)
at FSReqWrap.oncomplete (fs.js:114:15)

stale

Source

acodercat

👍14

Most helpful comment

I had a similar issue and this is what fixed it for me was to re-initialize a new truffle instance with "truffle init webpack" :

``➜ truffle> truffle serve Serving static assets in ./build on port 8080... /Users/thfalgou/.nvm/versions/node/v6.6.0/lib/node_modules/truffle/build/cli.bundled.js:115605 return (new fsevents(path)).on('fsevent', callback).start(); ^ ➜ truffle> cd .. ➜ ethereum> mkdir truffle-webpack ➜ ethereum> cd truffle-webpack ➜ truffle-webpack> truffle init webpack Usingtruffle initwith a specific template is deprecated. Please usetruffle unbox` instead.
...
➜ truffle-webpack> truffle compile
Compiling ./contracts/ConvertLib.sol...
...
➜ truffle-webpack> truffle migrate
Using network 'development'.
...
➜ truffle-webpack> npm run dev

[email protected] dev /Users/thfalgou/tmp/ethereum/truffle-webpack
webpack-dev-server

Project is running at http://localhost:8080/

lastcoolnameleft on 11 Aug 2017

👍8 🎉6

All 57 comments

Had the same problem with truffle@beta. After having installed [email protected] the problem disappeared. However, for a successful install of [email protected] you must have a VS2015 build chain. I know it doesn't sound like a real solution but according to this thread it's rather hard to run truffle properly under Windows.

brakmic on 18 Jun 2017

👍3

On a Windows machine. Can confirm that I am also having the problem with the latest truffle (release v3.3.0) when running truffle serve. Installed [email protected] which resolves this issue (thanks brakmic).

I'm a bit tempted to buy a MacBook just to develop on Truffle....

Enigmatic331 on 28 Jun 2017

👍3

Just had this Same issue resolved with installing [email protected]

it's not a windows10 issue, as i was running ubuntu 16.04

@tcoulter

seunlanlege on 29 Jun 2017

👍2

Same issue on MacOS

haraldini on 29 Jun 2017

👍10

Same issue on Ubuntu 16.04 - [email protected], workaround I found to use:

npm run dev

EdgarCloggs on 29 Jun 2017

👍3 🎉1

Confirmed issue with Truffle 3.3.0. We're on it.

tcoulter on 29 Jun 2017

@EdgarCloggs

I don't understand the npm run dev workaround?

After running:
truffle init
truffle compile
truffle migrate

there is no package.json there. So no script to run?
Would you know where I can get the package.json for the truffled project?

liskicious on 3 Jul 2017

👍11

can confirm happening windows 10 v3.4.4

kevupton on 13 Jul 2017

Is there any known workaround for the time being? Ubuntu 14.04 here.

Edit: The workaround npm run dev works with such a setup: https://github.com/trufflesuite/truffle-init-webpack

d10r on 14 Jul 2017

❤1 👍1

npm run dev works with truffle 3.3.1 on Mac

yozef on 14 Jul 2017

same here at macOS 10.12.5

$ truffle version
Truffle v3.4.5 (core: 3.4.5)

npm run dev works though.

yellowred on 18 Jul 2017

same here

macOS 10.12.5
Truffle v3.4.5 (core: 3.4.5)

vmatekole on 18 Jul 2017

Same with Truffle v3.2.8 on Mac OS 10.12.5 Sierra

fredolamolette on 19 Jul 2017

Any fix to come ?

fredolamolette on 19 Jul 2017

Same with truffle 3.4.5 on Mac 10.12.5 Sierra
Node Version: 7.6
npm version: 4.1.2

return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
at createFSEventsInstance (/Users/ron/.nvm/versions/node/v7.6.0/lib/node_modules/truffle/build/cli.bundled.js:124978:11)
at setFSEventsListener (/Users/ron/.nvm/versions/node/v7.6.0/lib/node_modules/truffle/build/cli.bundled.js:125032:16)
at FSWatcher.FsEventsHandler._watchWithFsEvents (/Users/ron/.nvm/versions/node/v7.6.0/lib/node_modules/truffle/build/cli.bundled.js:125196:16)
at FSWatcher. (/Users/ron/.nvm/versions/node/v7.6.0/lib/node_modules/truffle/build/cli.bundled.js:125330:25)
at gotStat (fs.js:1723:21)
at FSReqWrap.oncomplete (fs.js:114:15)

ron137 on 24 Jul 2017

Hey guys,
Same with truffle 3.4.6 on Ubuntu 16.04.
Any fix in the near future?

Or, how can I downgrade my truffle version to a working one?

Edit: Ok, I used npm install -g [email protected] and this seems to work fine.

dflick on 4 Aug 2017

Same problem on MacOS with truffle 3.4.8

avitus on 11 Aug 2017

I had a similar issue and this is what fixed it for me was to re-initialize a new truffle instance with "truffle init webpack" :

[email protected] dev /Users/thfalgou/tmp/ethereum/truffle-webpack
webpack-dev-server

Project is running at http://localhost:8080/

lastcoolnameleft on 11 Aug 2017

👍8 🎉6

I also had similar issue.old version is fine."npm run dev" only can run Boxes DApp,like these.http://truffleframework.com/boxes/

xunfeng1980 on 13 Aug 2017

🎉1

I also had the same issue. MacOs
Truffle v3.4.8
node.js v6.11.2

ljinkai on 15 Aug 2017

I also had the same issue. MacOs
Truffle v3.4.7 (core: 3.4.7)
Solidity v0.4.13 (solc-js)

cocos543 on 22 Aug 2017

I also had the same issue. Truffle v3.4.9

haozheng01 on 22 Aug 2017

Same issue with Truffle v3.4.9 on Arch Linux:

$ truffle version
Truffle v3.4.9 (core: 3.4.8)
Solidity v0.4.15 (solc-js)
$ truffle init
...
$ truffle compile
...
$ truffle migrate
...
$ truffle serve
Serving static assets in ./build on port 8080...
/usr/lib/node_modules/truffle/build/cli.bundled.js:115605
  return (new fsevents(path)).on('fsevent', callback).start();
          ^

TypeError: fsevents is not a constructor
    at createFSEventsInstance (/usr/lib/node_modules/truffle/build/cli.bundled.js:115605:11)
    at setFSEventsListener (/usr/lib/node_modules/truffle/build/cli.bundled.js:115659:16)
    at FSWatcher.FsEventsHandler._watchWithFsEvents (/usr/lib/node_modules/truffle/build/cli.bundled.js:115823:16)
    at FSWatcher.<anonymous> (/usr/lib/node_modules/truffle/build/cli.bundled.js:115957:25)
    at gotStat (fs.js:1783:21)
    at FSReqWrap.oncomplete (fs.js:152:21)
$

vsergeev on 23 Aug 2017

When will this be fixed? I keep having to install different versions of Truffle to get different functionality :(

lukehamilton on 24 Aug 2017

👍5

Same issue on Windows Platform

animeshjn on 29 Aug 2017

👍1

Use “truffle init webpack”
and "npm run dev" instead of "truffle serve"

ZihaoZhang270 on 31 Aug 2017

👍4 ❤2

Hello, is there any update on this issue? We're having problems.

hackingbeauty on 17 Sep 2017

This also prevents me using latest Truffle on Ubuntu (16.04).

I have noticed in the webpack build config that this line replaces fsevents with this empty exports object. I've changed that to export an object compatible with the FSEvents API and that seems to have alleviated the crash.

However I still can't get watching to work locally. Can others experiencing the problem check to see if it resolves anything for them?

pospi on 18 Sep 2017

This bug prevents me using Truffle v4.0.0-beta.0 (core: 4.0.0-beta.0) in watch mode too on Mac OS X

Command: truffle watch

/usr/local/lib/node_modules/truffle/build/cli.bundled.js:218559
return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
at createFSEventsInstance (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:218559:11)
at setFSEventsListener (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:218613:16)
at FSWatcher.FsEventsHandler._watchWithFsEvents (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:218777:16)
at FSWatcher. (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:218911:25)
at gotStat (fs.js:1793:21)
at FSReqWrap.oncomplete (fs.js:123:15)

olegwn on 21 Sep 2017

edit package.json:

"dev": "webpack-dev-server --host 0.0.0.0 --port 8080"

to make ip:8080 ok
wish to fix this bug
CentOS Linux release 7.2.1511 (Core)

gengxuelei on 21 Sep 2017

👍2

npm-watch is a lighter solution (especially if you are not using webpack) - it basically just a wrapper around nodemon (which is what should be used instead of fsevents as it is portable)

add these bits to your package.json

{
  "devDependencies": {
    "truffle": "^3.4.9",
    "npm-watch": "^0.2.0"
  },
  "scripts": {
    "pretest": "truffle compile",
    "test": "truffle test",
    "watch": "npm-watch"
  },
  "watch": {
    "test": {
      "patterns": [
        "contracts",
         "migrations",
         "test"
      ],
      "extensions": "js,json,sol"
    }
  }
}

then to start the watch npm run watch

more details on configuring npm-watch at https://github.com/M-Zuber/npm-watch

carchrae on 21 Sep 2017

🎉3 👍2

@carchrae thanks! that helped

I ended up with this config for 4.x version:

````
{
"dependencies": {
"npm-watch": "^0.2.0"
},
"scripts": {
"test": "truffle test",
"watch": "npm-watch"
},
"watch": {
"test": {
"patterns": [
"truffle",
"test",
"contracts"
],
"extensions": "js,json,sol"
}
},
}

olegwn on 21 Sep 2017

👍3

Facing the same problem in Ubuntu 16.04

`truffle serve
Serving static assets in ./build on port 8080...
/usr/local/lib/node_modules/truffle/build/cli.bundled.js:114396
return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
`

pranoygn on 17 Oct 2017

npm uninstall -g truffle
npm install -g [email protected]
i'hava sloulation this probloem
nice

stvenyin on 23 Oct 2017

try npm install -g [email protected] --unsafe-perm

stvenyin on 23 Oct 2017

same problem. Truffle 4.0.1 on Ubuntu

sgehrman on 9 Nov 2017

👍4

same problem. Truffle 4.0.1 on MAC.
and i've fixed it.
clone the project locally with

git clone https://github.com/trufflesuite/truffle && cd truffle
echo 'module.exports = null ' > null.js

and then edit the file cli.webpack.config.js on line 85

"fsevents": path.join(__dirname, "./null.js"),

run

npm run build
npm uninstall -g truffle
npm install -g truffle `pwd`

that's it!

mengjiaqi on 23 Nov 2017

👍5 🎉2 😄1

@mengjiaqi NB！

reedhong on 23 Nov 2017

@mengjiaqi does that actually fix watch mode now, or just avoid the crash? I guess I'd have to test on Ubuntu to be sure. I had a PR earlier where I fixed the crash via the same sort of faux-fsevents object, but watch still didn't actually work.

pospi on 24 Nov 2017

$ truffle --version
Truffle v4.0.1 - a development framework for Ethereum

$ truffle serve
Serving static assets in ./build on port 8080...
/usr/local/lib/node_modules/truffle/build/cli.bundled.js:219284
return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
at createFSEventsInstance (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:219284:11)
at setFSEventsListener (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:219338:16)
at FSWatcher.FsEventsHandler._watchWithFsEvents (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:219502:16)
at FSWatcher. (/usr/local/lib/node_modules/truffle/build/cli.bundled.js:219636:25)
at gotStat (fs.js:1783:21)
at FSReqWrap.oncomplete (fs.js:152:21)

OS: MacOS 10.13.1 (17B48)

dcb9 on 28 Nov 2017

@pospi It just avoid the crash.

mengjiaqi on 28 Nov 2017

@mengjiaqi works like a charm. Thanks!

maxweng on 6 Dec 2017

@mengjiaqi When I go to do 'npm run build' I get the error 'webpack not found', I have installed Truffle 4.0.4 and I have also already unboxed a webpack on the server but still get this error.

Any ideas?

Is there any documentation on how to actually deploy these Dapps onto a remote server using truffle 4?

JackPickering on 31 Dec 2017

@mengjiaqi meng cool

sing1ee on 15 Jan 2018

I also have the same problem on Ubuntu 16.04 when I try to executive the command of "truffle serve"
TypeError: fsevents is not a constructor

oneclouds on 15 Jan 2018

Have the same issue:

PS C:ToDel> truffle serve
Serving static assets in .build on port 8080...
C:UserstestuAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:220548
return (new fsevents(path)).on('fsevent', callback).start();
^

TypeError: fsevents is not a constructor
at createFSEventsInstance (C:UserstestuAppDataRoamingnpmnode_modulestrufflebuildcli.bundled.js:220548:11)

at FSReqWrap.oncomplete (fs.js:152:21)
PS C:ToDel> truffle version
Truffle v4.0.5 (core: 4.0.5)
Solidity v0.4.18 (solc-js)
PS C:ToDel>

ShaleenThapa on 24 Jan 2018

Have the same issue:

Truffle v4.0.6 (core: 4.0.6)
Solidity v0.4.19 (solc-js)

mac os 10.12.6

sanshao on 3 Feb 2018

npm uninstall -g truffle
npm install -g [email protected]
mkdir truffle-webpack
cd truffle-webpack
truffle init webpack
truffle compile
npm run dev

don't run "truffle serve" , run "npm run dev" instead of

i'hava sloulation this probloem on Mac os 10.12.6

lijiangongo on 9 Feb 2018

👍2

Have the same problem :

Truffle v4.0.6 (core: 4.0.6)
Solidity v0.4.19 (solc-js)

mac os 10.13.3

jackz-jones on 12 Feb 2018

Have the same problem :

Truffle v4.0.6 (core: 4.0.6)
Solidity v0.4.19 (solc-js)

mac os 10.12.3

please provide some solution

GodwinAdam on 26 Feb 2018

npm uninstall -g truffle
npm install -g [email protected]
mkdir truffle-webpack
cd truffle-webpack
truffle init webpack
truffle compile
npm run dev

ubuntu is worked~

dingymm on 27 Feb 2018

Truffle v4.1.5 (core: 4.1.5)
Solidity v0.4.21 (solc-js)
Have the same problem.

xuyao91 on 10 Apr 2018

Same issue here on macOS High Sierra

Truffle v4.1.3 (core: 4.1.3)
Solidity v0.4.19 (solc-js)

craigbranscom on 12 Apr 2018

npm ERR! missing script: dev

JimiPedros on 4 May 2018

👍1

Have the same problem:

➜ truffleTest truffle version
Truffle v4.1.8 (core: 4.1.9)
Solidity v0.4.24 (solc-js)

➜ truffleTest truffle serve
Serving static assets in ./build on port 8080...

/usr/local/lib/node_modules/truffle/build/webpack:/~/chokidar/lib/fsevents-handler.js:26
return (new fsevents(path)).on('fsevent', callback).start();
^
TypeError: fsevents is not a constructor
at createFSEventsInstance (/usr/local/lib/node_modules/truffle/build/webpack:/~/chokidar/lib/fsevents-handler.js:26:1)
at setFSEventsListener (/usr/local/lib/node_modules/truffle/build/webpack:/~/chokidar/lib/fsevents-handler.js:80:1)
at FSWatcher.FsEventsHandler._watchWithFsEvents (/usr/local/lib/node_modules/truffle/build/webpack:/~/chokidar/lib/fsevents-handler.js:244:1)
at FSWatcher. (/usr/local/lib/node_modules/truffle/build/webpack:/~/chokidar/lib/fsevents-handler.js:378:1)
at gotStat (fs.js:1824:21)
at FSReqWrap.oncomplete (fs.js:170:21)

XiaoZhangJian on 30 May 2018

👍2

Thank you for raising this issue! It has been automatically marked as stale because it has not had recent activity. It will be closed in 7 days if no further activity occurs. If you would like to keep this issue open, please respond with information about the current state of this problem.

stale[bot] on 8 Nov 2018

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stale[bot] on 15 Nov 2018

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