ember-cli 🚀 - Error: unable to resolve root

@calvinmetcalf steps to reproduce please

stefanpenner on 5 Dec 2014

I'm seeing similar error:

[ilkkao:~/git/mas/client]$ ember build --watch                                              (master✱)
version: 0.1.4
valid watchman found, version: [3.0.0]
Building..events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: unable to resolve root /Users/ilkkao/git/mas/client/config: directory /Users/ilkkao/git/mas/client/config is not watched
    at null.<anonymous> (/Users/ilkkao/git/mas/client/node_modules/ember-cli/node_modules/broccoli-sane-watcher/node_modules/sane/node_modules/fb-watchman/index.js:84:23)
    at emit (events.js:107:17)
    at readableAddChunk (_stream_readable.js:162:16)
    at Readable.push (_stream_readable.js:125:10)
    at Transform.push (_stream_transform.js:140:32)
    at JSONStream._transform (/Users/ilkkao/git/mas/client/node_modules/ember-cli/node_modules/broccoli-sane-watcher/node_modules/sane/node_modules/fb-watchman/node_modules/json-stream/lib/json-stream.js:30:14)
    at Transform._read (_stream_transform.js:179:10)
    at Transform._write (_stream_transform.js:167:12)
    at doWrite (_stream_writable.js:265:12)
    at writeOrBuffer (_stream_writable.js:252:5)

I'll check tomorrow if my project causes ember build --watch to fail also on my second laptop.

ilkkao on 7 Dec 2014

what does watchman watch-list yield

stefanpenner on 7 Dec 2014

{
    "version": "3.0.0",
    "roots": [
        "/Users/ilkkao/tmp/mas/mas/config",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-qunit/dist/named-amd",
        "/Users/ilkkao/tmp/mas/mas/bower_components/handlebars",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-resolver/dist/modules",
        "/Users/ilkkao/git/mas/client/tests",
        "/Users/ilkkao/tmp/mas/mas/bower_components/qunit/qunit",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember",
        "/Users/ilkkao/tmp/mas/mas/bower_components/jquery/dist",
        "/Users/ilkkao/tmp/mas/mas/bower_components/loader.js",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-qunit-notifications",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-cli-shims",
        "/Users/ilkkao/git/mas/client/app",
        "/Users/ilkkao/tmp/mas/mas/public",
        "/Users/ilkkao/tmp/mas/mas/tests",
        "/Users/ilkkao/tmp/mas/mas/bower_components/qunit-notifications",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-load-initializers",
        "/Users/ilkkao/tmp/mas/mas/app",
        "/Users/ilkkao/tmp/mas/mas/bower_components/ember-data"
    ]
}

ilkkao on 7 Dec 2014

client/config is indeed missing from the list. Can I debug this deeper? I'm very new to ember-cli.

ilkkao on 7 Dec 2014

Watchman output for the same project on my other laptop:

{
    "version": "3.0.0",
    "roots": [
        "/Users/ilkkao/git/mas/client/bower_components/lodash/dist",
        "/Users/ilkkao/git/mas/client/bower_components/Caret.js/dist",
        "/Users/ilkkao/git/mas/client/bower_components/bootstrap-contextmenu",
        "/Users/ilkkao/git/mas/client/bower_components/handlebars",
        "/Users/ilkkao/git/mas/client/bower_components/ember-qunit/dist/named-amd",
        "/Users/ilkkao/git/mas/client/bower_components/bootstrap/dist/js",
        "/Users/ilkkao/git/mas/client/bower_components/jquery.atwho/dist/js",
        "/Users/ilkkao/git/mas/client/public",
        "/Users/ilkkao/git/mas/client/bower_components/bootstrap/dist/fonts",
        "/Users/ilkkao/git/mas/client/bower_components/jquery/dist",
        "/Users/ilkkao/git/mas/client/bower_components/ember-load-initializers",
        "/Users/ilkkao/git/mas/client/bower_components/howler",
        "/Users/ilkkao/git/mas/client/bower_components/emojify.js",
        "/Users/ilkkao/git/mas/client/bower_components/velocity",
        "/Users/ilkkao/git/mas/client/config",
        "/Users/ilkkao/git/mas/client/bower_components/ember",
        "/Users/ilkkao/git/mas/client/bower_components/ember-resolver/dist/modules",
        "/Users/ilkkao/git/mas/client/bower_components/qunit-notifications",
        "/Users/ilkkao/git/mas/client/bower_components/emojify.js/images",
        "/Users/ilkkao/git/mas/client/bower_components/ember-cli-shims",
        "/Users/ilkkao/git/mas/client/bower_components/uri.js/src",
        "/Users/ilkkao/git/mas/client/bower_components/jquery-cookie",
        "/Users/ilkkao/git/mas/client/bower_components",
        "/Users/ilkkao/git/mas/client/app",
        "/Users/ilkkao/git/mas/client/bower_components/qunit/qunit",
        "/Users/ilkkao/git/mas/client/bower_components/momentjs",
        "/Users/ilkkao/git/mas/client/bower_components/magnific-popup/dist",
        "/Users/ilkkao/git/mas/client/tests",
        "/Users/ilkkao/git/mas/client/bower_components/loader.js",
        "/Users/ilkkao/git/mas/client/bower_components/ember-qunit-notifications",
        "/Users/ilkkao/git/mas/client/bower_components/font-awesome/fonts",
        "/Users/ilkkao/git/mas/client/bower_components/TitleNotifier.js",
        "/Users/ilkkao/git/mas/client/bower_components/FileAPI/dist"
    ]
}

That looks much more normal. In my first example ember-cli has started to use my ~/tmp directory. I checked that those subdirectories actually exist there. Maybe I did something wrong at some point.

ilkkao on 8 Dec 2014

i have this problem too

events.js:72
throw er; // Unhandled 'error' event
^
Error: FSEventStreamStart failed
at [object Object]. (/Users/user/projects/proj/node_modules/ember-cli/node_modules/broccoli-sane-watcher/node_modules/sane/node_modules/fb-watchman/index.js:84:23)
at [object Object].emit (events.js:95:17)
at [object Object]. (_stream_readable.js:764:14)
at [object Object].emit (events.js:92:17)
at emitReadable_ (_stream_readable.js:426:10)
at emitReadable (_stream_readable.js:422:5)
node v0.10.32
npm 2.1.9
watchman 3.0.0"

OS X 10.10.1

AmilKey on 8 Dec 2014

@AmilKey what is the result of watchman watch-list

stefanpenner on 8 Dec 2014

@stefanpenner

{
    "version": "3.0.0",
    "roots": [
        "/Users/user/projects/proj/bower_components/ember-validations",
        "/Users/user/projects/proj/bower_components/simpleStorage",
        "/Users/user/projects/proj/bower_components/ember-localstorage-adapter",
        "/Users/user/projects/proj/bower_components/bootstrap-stylus/js",
        "/Users/user/projects/proj/bower_components/sinon",
        "/Users/user/projects/proj/public",
        "/Users/user/projects/proj/bower_components/jquery-mockjax",
        "/Users/user/projects/proj/bower_components/webshim",
        "/Users/user/projects/proj/app",
        "/Users/user/projects/proj/bower_components/ember-utils/dist/globals",
        "/Users/user/projects/proj/bower_components/group-helper",
        "/Users/user/projects/proj/tests",
        "/Users/user/projects/proj/bower_components/bootstrap-stylus",
        "/Users/user/projects/proj/bower_components/webshim/js-webshim/dev",
        "/Users/user/projects/proj/bower_components/CryptoJS/build/components",
        "/Users/user/projects/proj/bower_components/ember-responsive/dist",
        "/Users/user/projects/proj/bower_components/typehead.js/dist",
        "/Users/user/projects/proj/bower_components/jqueryui-touch-punch",
        "/Users/user/projects/proj/config",
        "/Users/user/projects/proj/bower_components/numeral",
        "/Users/user/projects/proj/bower_components/jquery-ui",
        "/Users/user/projects/proj/bower_components/ember-i18n/lib"
    ]
}

AmilKey on 8 Dec 2014

@stefanpenner i resolve this error
after reboot system this error disappeared

MacBook-Pro-Ivan:proj.net user$ ember s
version: 0.1.4
valid watchman found, version: [3.0.0]
Livereload server on port 35729
Serving on http://0.0.0.0:4200/

Build successful - 14005ms.

file added main.js
file added bower.json
file added ember-renderspeed.js
file added LICENSE

AmilKey on 8 Dec 2014

@AmilKey @calvinmetcalf which commands were you running when you hit this?

stefanpenner on 8 Dec 2014

@stefanpenner after reboot system
watchman watch-list
{
"version": "3.0.0",
"roots": [
"/Users/user/projects/proj/bower_components/jquery/dist",
"/Users/user/projects/proj/bower_components/loader.js",
"/Users/user/projects/proj/bower_components/ember-cli-shims",
"/Users/user/projects/proj/bower_components/qunit/qunit",
"/Users/user/projects/proj/bower_components/cldr",
"/Users/user/projects/proj/bower_components/ember-localstorage-adapter",
"/Users/user/projects/proj/bower_components/simpleStorage",
"/Users/user/projects/proj/bower_components/ember-validations",
"/Users/user/projects/proj/bower_components/ember",
"/Users/user/projects/proj/bower_components/sinon",
"/Users/user/projects/proj/bower_components/bootstrap-stylus/js",
"/Users/user/projects/proj/bower_components/ember-load-initializers",
"/Users/user/projects/proj/bower_components/ember-data",
"/Users/user/projects/proj/bower_components/moment",
"/Users/user/projects/proj/bower_components/ember-renderspeed",
"/Users/user/projects/proj/app",
"/Users/user/projects/proj/bower_components/webshim",
"/Users/user/projects/proj/bower_components/jquery-mockjax",
"/Users/user/projects/proj/public",
"/Users/user/projects/proj/bower_components/handlebars",
"/Users/user/projects/proj/bower_components/ember-qunit-notifications",
"/Users/user/projects/proj/bower_components/bootstrap-stylus",
"/Users/user/projects/proj/tests",
"/Users/user/projects/proj/bower_components/group-helper",
"/Users/user/projects/proj/bower_components/ember-utils/dist/globals",
"/Users/user/projects/proj/bower_components/ember-resolver/dist/modules",
"/Users/user/projects/proj/bower_components/ember-qunit/dist/named-amd",
"/Users/user/projects/proj/config",
"/Users/user/projects/proj/bower_components/jqueryui-touch-punch",
"/Users/user/projects/proj/bower_components/typehead.js/dist",
"/Users/user/projects/proj/bower_components/ember-responsive/dist",
"/Users/user/projects/proj/bower_components/CryptoJS/build/components",
"/Users/user/projects/proj/bower_components/webshim/js-webshim/dev",
"/Users/user/projects/proj/bower_components/qunit-notifications",
"/Users/user/projects/proj/bower_components/jquery-ui",
"/Users/user/projects/proj/bower_components/numeral",
"/Users/user/projects/proj/bower_components/ember-easyForm",
"/Users/user/projects/proj/bower_components/ember-i18n/lib"
]
}

AmilKey on 8 Dec 2014

@stefanpenner i deleted
"ember-cli-dependency-checker" from package.json
after
npm i
bower i
and
"ember s" and seen this error

AmilKey on 8 Dec 2014

The watch roots seem low enough in count that it isn't a problem. But clearly with watchman we can just watch bower_components and be done with it. Or maybe even the top level root

Might be annoying to refactor but worth it regardless if it is this problem or not

stefanpenner on 8 Dec 2014

Reboot fixed also my problems

ilkkao on 8 Dec 2014

@wez any thoughts? Doesn't seem like we are blowing any obvious limt, atleast not on our end.

stefanpenner on 8 Dec 2014

Anything relevant in the watchman log file? you can find it at $TMPDIR/.watchman.$USER.log

wez on 10 Dec 2014

@wez good to know. Thanks

stefanpenner on 10 Dec 2014

I couldn't find .watchman log from any obvious location (/tmp, /var/tmp, or project-root/tmp) but the fallback watcher also dies and gives EMFILE error in this situation

If I do sudo lsof | cut -f1 -d " " | sort | uniq -c | sort -n I can see that Chrome has a lot of descriptors open:

 181 Sublime
 201 UserEvent
 267 Dock
 387 com.apple
 482 Spotify
3111 Google

My easiest work-a-round now is to restart Chrome. Maybe there's nothing wrong in ember-cli and wathcman. Error message is just cryptic. I'm still puzzled why I hit the limit as sysctl -w kern.maxfiles returns kern.maxfiles: 12288 (and sysctl -w kern.maxfilesperproc is kern.maxfilesperproc: 10240)

ilkkao on 11 Dec 2014

I'm probably seeing: https://code.google.com/p/chromium/issues/detail?id=418752

ilkkao on 11 Dec 2014

I'm having this same issue when trying to include watchman with the latest Ember CLI 0.1.5 trying to

app.import('bower_components/moment/moment.js');

chriscareycode on 30 Dec 2014

Same issue as everyone else when trying to add imports in my brocfile.

Restart of device fixed it as well. (OSX10.10.1)

paulochoi on 1 Jan 2015

Running watchman shutdown-server and restarting ember server solved this for me.

Had this problem after installing ember-cli-pretender and bower_components/FakeXMLHttpRequest was not watched.

ahx on 6 Jan 2015

👍1

as watchman doesn't age-out watched roots, they can pile up and need cleaning. https://github.com/ember-cli/ember-cli/issues/2894 is a short term workaround.

Currently ember-cli is to conservative with assigning roots, we need to be more aggressive when watchman is present. This should cut down on watched roots.

stefanpenner on 6 Jan 2015

I've got this for the second time after running a custom component generator.

leobalter on 14 Jan 2015

Even the #2894 workaround doesn't work for me: https://gist.github.com/leobalter/a6c07307301a021a9c25

Edit: updating ember-cli from 1.5 to 1.7 worked. I'll install another component to give a feedback if this issue seems completely fixed.

leobalter on 14 Jan 2015

Restarting Chrome fixed it for me.

chrisrickard on 17 Jan 2015

Closing Sublime fixed the error for me. There is another issue mentioning this as well (sorry I can't find the issue)

Before closing Sublime and doing watchman watch-list showed the below

{
    "version": "3.0.0",
    "roots": [
        "/Users/petermumford/code/web/geojobs/client/public",
        "/Users/petermumford/code/web/geojobs/client/app",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-data",
        "/Users/petermumford/code/web/geojobs/client/vendor",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-cli-shims",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-load-initializers",
        "/Users/petermumford/code/web/geojobs/client/bower_components/qunit/qunit",
        "/Users/petermumford/code/web/geojobs/client/bower_components/qunit-notifications",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-qunit/dist/named-amd",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-qunit-notifications",
        "/Users/petermumford/code/web/geojobs/client/tests",
        "/Users/petermumford/code/web/geojobs/client/config"
    ]
}

and after restarting showed:

{
    "version": "3.0.0",
    "roots": [
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-resolver/dist/modules",
        "/Users/petermumford/code/web/geojobs/client/public",
        "/Users/petermumford/code/web/geojobs/client/app",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-data",
        "/Users/petermumford/code/web/geojobs/client/bower_components/loader.js",
        "/Users/petermumford/code/web/geojobs/client/vendor",
        "/Users/petermumford/code/web/geojobs/client/bower_components/jquery/dist",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-cli-shims",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-load-initializers",
        "/Users/petermumford/code/web/geojobs/client/bower_components/qunit/qunit",
        "/Users/petermumford/code/web/geojobs/client/bower_components/qunit-notifications",
        "/Users/petermumford/code/web/geojobs/client/bower_components/typeahead.js/dist",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-qunit/dist/named-amd",
        "/Users/petermumford/code/web/geojobs/client/bower_components/ember-qunit-notifications",
        "/Users/petermumford/code/web/geojobs/client/tests",
        "/Users/petermumford/code/web/geojobs/client/bower_components/handlebars",
        "/Users/petermumford/code/web/geojobs/client/config"
    ]
}

petermumford on 19 Jan 2015

@wez any thoughts?

stefanpenner on 22 Jan 2015

Closing Sublime and Chrome to resolve things makes this not sound like a watchman issue.
I still don't see any watchman logs referenced here, so it's hard to say for sure.

wez on 22 Jan 2015

@wez I don't use sublime but I will try it out and try and give you and the authors of sublime feedback

The fact that chrome matters leads me to believe the system is starved on free fd. Like will be improved once we use watchman correctly. I intend to do this still just haven't had a chance yet

stefanpenner on 22 Jan 2015

@wez I've tried to get my watchman logs for you but when I run this command $TMPDIR/.watchman.$USER.log I get the following error: The file /var/folders/t6/fgpx3xp567xbvpzmjhj5bxrr0000gn/T//.watchman.petermumford.log does not exist.

Is there something I've missed when installing/starting watchman? I have watchman version 3.0.0.

petermumford on 22 Jan 2015

FWIW, just ran into the same issue on a new project. Ember CLI 0.1.9

benlesh on 23 Jan 2015

Closing Sublime resolved this for me.

pwfisher on 10 Feb 2015

Would also like to report that closing Sublime Text 3 b3069 resolved this issue for me on ember-cli 0.1.14.

karelvuong on 12 Feb 2015

I also got similar errors until I closed Sublime Text 3.

Panoplos on 21 Feb 2015

Our integration with watchman is currently suboptimal. We watch way more roots then we need to when watchman is enabled. in addition, watchman doesn't age out watchers. Ultimately though if we stop watching nearly as many roots as we are, the problem is mostly mitigated.

stefanpenner on 24 Feb 2015

Stefan, something I noticed is that the code automatically adds directories (and subdirectories!) of files specified in app.import(...), which to me is a problem for several reasons:

I may have files within these directories that I do not need to be watched. In fact, I have a case where I do not _want_ them to be watched. For instance, with Semantic UI, both the compiled sources and concatted outputs are placed under path/to/dist. I am running into an issue where I want to watch another directory for changes to set off the build system for SUI, but because I have to use app.import('path/to//dist/outputfile.ext'), it results in dist and all of the subdirs under dist getting watched. However, the actual files that I _need_ watched are not. (I have not figured out how to add them to the watcher yet, so if you have any suggestions, please advise.
Due to above, many, many files are being watched needlessly, and contributing to the parent issue.

Also, I have noticed ember-app.js uses unwatchedTree. As a workaround to 1. I would like to use this, but have no clue where it should be used or how. Any help is extremely welcome.

Panoplos on 24 Feb 2015

@Panoplos ya you nailed it, basically our watcher interactions + user facing API are mis-aligned.

stefanpenner on 24 Feb 2015

Sublime:

⌘+Q

Terminal:

subl .
ember s

benlesh on 24 Feb 2015

So not using sublime is the solution???
I tried using mac built in texteditor... ember serve stopped working after a while with that to.

watchman "version": "3.1.1"
ember-cli 0.2.3
node: 0.12.2
npm: 2.7.6
ember: 1.10.1 and latest same error

running
sudo pkill -9 -x fseventsd
watchman shutdown-server
lets me work again for 2-3 changes then it crash again.

morgondag on 13 May 2015

👍1

Yeap! :(
@morgondag

Same here, with:

watchman: 3.2
npm: 1.4.3
node: 0.10.26
ember-cli: 0.2.5
ember: 1.11.3

SSS2557 on 30 May 2015

watching integration is now much better, haven't seen this when using watchman 3.7 or later.

stefanpenner on 15 Sep 2015

@stefanpenner Just started using ember, getting startd with the quickstart tutorial. Two steps in, in the define a route step, I ran into this same problem (and I am using watchman version 4.40).

When I tried to visit the template page, nothing would show, and terminal logged the following error:

unable to resolve root /Users/acastano/Sites/Projects/studbits: failed to opendir(/Users/acastano/Sites/Projects/studbits): No such file or directory
Error: unable to resolve root /Users/acastano/Sites/Projects/studbits: failed to opendir(/Users/acastano/Sites/Projects/studbits): No such file or directory
    at BunserBuf.<anonymous> (/Users/acastano/Sites/projects/studbits/node_modules/ember-cli/node_modules/sane/node_modules/fb-watchman/index.js:95:23)
    at emitOne (events.js:96:13)
    at BunserBuf.emit (events.js:188:7)
    at BunserBuf.process (/Users/acastano/Sites/projects/studbits/node_modules/ember-cli/node_modules/sane/node_modules/fb-watchman/node_modules/bser/index.js:289:10)
    at /Users/acastano/Sites/projects/studbits/node_modules/ember-cli/node_modules/sane/node_modules/fb-watchman/node_modules/bser/index.js:244:12
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)

I was able to get the page to render by running ember build and then ember serve. But I still see the error displayed.

But (unless I did something wrong) if the error isn't fixed, the documentation should be updated with ways to resolve error so as to not discourage beginners 2 steps into the tutorial.

alidlorenzo on 25 Aug 2016

@alidcastano We've not seen this issue in a long time so can you open a new issue and include your environmental information?

Alternatively, since it's likely something unique about your machine please stop by #-ember-cli in the Ember Community Slack and see if anybody in our community can help you solve this problem.

nathanhammond on 25 Aug 2016

Ember-cli: Error: unable to resolve root

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