Javascript events.js: 141 抛出 er; // 未处理的“错误”事件
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events.js: 141 throw er; // Unhandled 'error' event
提问by Torun ünver
I'm trying to run node 4.2.2 on a Mac OS and i'm not understanding why every time i get this error message:
我正在尝试在 Mac OS 上运行节点 4.2.2，但我不明白为什么每次收到此错误消息时：
events.js:141
throw er; // Unhandled 'error' event
^
Error: spawn /Users/user/Documents/Projects/project-x/node_modules/gifsicle/vendor/gifsicle ENOENT
at exports._errnoException (util.js:874:11)
at Process.ChildProcess._handle.onexit (internal/child_process.js:178:32)
at onErrorNT (internal/child_process.js:344:16)
at doNTCallback2 (node.js:441:9)
at process._tickCallback (node.js:355:17)
c12320:project-x user$
What's going wrong? If i run "gulp build" there is this output:
怎么了？如果我运行“gulp build”，则会有以下输出：
c12320:project-x user$ gulp build
[15:13:41] Using gulpfile ~/Documents/Projects/project-x/gulpfile.js
[15:13:41] Starting 'clean'...
[15:13:41] Finished 'clean' after 160 μs
[15:13:41] Starting 'build'...
[15:13:41] Starting 'copy-assets'...
[15:13:41] Finished 'copy-assets' after 13 ms
[15:13:41] Starting 'minify-img'...
[15:13:41] Starting 'compile-css'...
[15:13:41] Starting 'compile-js'...
[15:13:41] Finished 'build' after 52 ms
[15:13:41] 'minify-img' errored after 468 ms
[15:13:41] Error: EACCES: permission denied, mkdir '/Users/user/Documents/Projects/project-x/public/assets/img/dummy'
at Error (native)
assets/js/00-bootstrap.js
line 3 col 5 Missing "use strict" statement.
? 1 error ? 0 warning
[15:13:41] Plumber found unhandled error:
Error: EACCES: permission denied, open '/Users/user/Documents/Projects/project-x/public/assets/css/develop.css'
assets/js/dev/lib/lodash.js
line 13 col 5 Missing "use strict" statement.
line 13 col 9 Expected an identifier and instead saw 'undefined' (a reserved word).
line 217 col 12 Strings must use singlequote.
line 227 col 21 Strings must use singlequote.
line 249 col 12 Strings must use singlequote.
line 249 col 17 Strings must use singlequote.
line 263 col 67 Expected '===' and instead saw '=='.
line 374 col 31 Expected '===' and instead saw '=='.
line 386 col 24 Expected '===' and instead saw '=='.
line 565 col 44 Expected '!==' and instead saw '!='.
line 565 col 81 Expected '===' and instead saw '=='.
line 577 col 42 Expected '===' and instead saw '=='.
line 589 col 85 Expected '===' and instead saw '=='.
line 589 col 103 Expected '===' and instead saw '=='.
line 589 col 123 Expected '===' and instead saw '=='.
line 589 col 143 Expected '===' and instead saw '=='.
line 590 col 62 Expected '===' and instead saw '=='.
line 590 col 82 Expected '===' and instead saw '=='.
line 590 col 102 Expected '===' and instead saw '=='.
line 590 col 122 Expected '===' and instead saw '=='.
line 590 col 142 Expected '===' and instead saw '=='.
line 590 col 163 Expected '===' and instead saw '=='.
line 805 col 54 Unexpected use of '>>>'.
line 814 col 38 Missing '()' invoking a constructor.
line 995 col 33 Missing '()' invoking a constructor.
line 995 col 13 The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.
line 1037 col 42 Expected '!==' and instead saw '!='.
line 1063 col 66 Expected '!==' and instead saw '!='.
line 1208 col 72 Expected '===' and instead saw '=='.
line 1208 col 95 Expected '===' and instead saw '=='.
line 1226 col 36 Expected '===' and instead saw '=='.
line 1229 col 40 Expected '===' and instead saw '=='.
line 1229 col 59 Blocks are nested too deeply. (4)
line 1231 col 36 Blocks are nested too deeply. (4)
line 1278 col 26 Expected '===' and instead saw '=='.
line 1291 col 26 Expected '!==' and instead saw '!='.
line 1305 col 23 Expected '!==' and instead saw '!='.
line 1323 col 66 Missing '()' invoking a constructor.
line 1340 col 42 Expected '===' and instead saw '=='.
line 1355 col 32 Expected '===' and instead saw '=='.
line 1400 col 44 Expected an assignment or function call and instead saw an expression.
line 1416 col 27 'arrayEach' was used before it was defined.
line 1678 col 17 Bad line breaking before '?'.
line 1721 col 29 Expected '===' and instead saw '=='.
line 1722 col 17 Bad line breaking before '?'.
line 1737 col 38 Expected '===' and instead saw '=='.
line 1764 col 35 Expected an assignment or function call and instead saw an expression.
line 1788 col 24 Expected '===' and instead saw '=='.
line 1790 col 21 Bad line breaking before '?'.
line 1793 col 24 Expected '===' and instead saw '=='.
line 1793 col 24 Too many errors. (14% scanned).
? 2 errors
? 49 warnings
assets/js/dev/lib/modernizr.js
line 2 col 12449 This character may get silently deleted by one or more browsers.
line 2 col 3272 Missing "use strict" statement.
line 2 col 3308 Missing semicolon.
line 2 col 3368 Expected '{' and instead saw 'if'.
line 2 col 3509 Expected '{' and instead saw 'for'.
line 2 col 3548 Blocks are nested too deeply. (4)
line 2 col 3548 Expected '{' and instead saw 'A'.
line 2 col 3615 Strings must use singlequote.
line 2 col 3648 Expected '{' and instead saw 'o'.
line 2 col 3668 Strings must use singlequote.
line 2 col 3772 Do not use Boolean as a constructor.
line 2 col 3845 Strings must use singlequote.
line 2 col 3851 Strings must use singlequote.
line 2 col 3863 Strings must use singlequote.
line 2 col 3864 Expected an assignment or function call and instead saw an expression.
line 2 col 3865 Missing semicolon.
line 2 col 3952 Strings must use singlequote.
line 2 col 4036 Strings must use singlequote.
line 2 col 4053 Strings must use singlequote.
line 2 col 4073 Strings must use singlequote.
line 2 col 4082 Strings must use singlequote.
line 2 col 4083 Missing semicolon.
line 2 col 4124 Strings must use singlequote.
line 2 col 4137 Strings must use singlequote.
line 2 col 4200 Expected an assignment or function call and instead saw an expression.
line 2 col 4201 Missing semicolon.
line 2 col 4235 Strings must use singlequote.
line 2 col 4237 Expected '===' and instead saw '=='.
line 2 col 4246 Expected '{' and instead saw 'for'.
line 2 col 4261 Expected '{' and instead saw 'hasOwnProp'.
line 2 col 4292 Expected an assignment or function call and instead saw an expression.
line 2 col 4246 The body of a for in should be wrapped in an if statement to filter unwanted properties from the prototype.
line 2 col 4334 Strings must use singlequote.
line 2 col 4360 Expected '===' and instead saw '=='.
line 2 col 4393 Strings must use singlequote.
line 2 col 4395 Expected '!==' and instead saw '!='.
line 2 col 4404 Expected '{' and instead saw 'return'.
line 2 col 4433 Strings must use singlequote.
line 2 col 4435 Expected '===' and instead saw '=='.
line 2 col 4453 Expected '===' and instead saw '=='.
line 2 col 4551 Do not use Boolean as a constructor.
line 2 col 4625 Expected '!==' and instead saw '!='.
line 2 col 4629 Strings must use singlequote.
line 2 col 4635 Strings must use singlequote.
line 2 col 4647 Strings must use singlequote.
line 2 col 4673 Expected an assignment or function call and instead saw an expression.
line 2 col 4674 Missing semicolon.
line 2 col 4691 Missing semicolon.
line 2 col 4733 Strings must use singlequote.
line 2 col 4735 Expected '!==' and instead saw '!='.
line 2 col 4735 Too many errors. (40% scanned).
? 2 errors
? 49 warnings
[15:13:42] Plumber found unhandled error:
Error: EACCES: permission denied, open '/Users/user/Documents/Projects/project-x/public/assets/js/app-load.js'
events.js:141
throw er; // Unhandled 'error' event
^
Error: EACCES: permission denied, open '/Users/user/Documents/Projects/project-x/public/assets/font/text/125eafff-7b5a-4c56-8a3a-d3fe11d8c3cc.svg'
at Error (native)
c12320:project-x user$
That's the output if i enter "gulp build"
如果我输入“gulp build”，这就是输出
回答by Ignatius Andrew
Check whether any other Terminal is running other Applications on the same port. This happens when multiple applications trying to access the same port, Its always FIFO.
检查是否有任何其他终端在同一端口上运行其他应用程序。当多个应用程序试图访问同一个端口时会发生这种情况，它总是 FIFO。
Good Luck!!!
祝你好运！！！
回答by Vishnu Mishra
First Look for the other applications is running on the same port may be another node application.
首先查找在同一端口上运行的其他应用程序可能是另一个节点应用程序。
To find the current process running on the same port use:
要查找在同一端口上运行的当前进程，请使用：
MAC:
苹果电脑：
You can try netstat
你可以试试netstat
netstat -anp tcp | grep 3000
For OSX "El Capitan" or if your netstat doesn't support -p, use lsof
对于 OSX "El Capitan" 或者如果您的 netstat 不支持 -p，请使用 lsof
lsof -i tcp:3000
Then kill the process
然后杀死进程
kill pid
You can try to kill all node process use:
您可以尝试杀死所有节点进程使用：
killall -9 node
回答by Breedly
ENOENT means that spawnwas unable to find the binary you are looking for. Make sure that what ever you are trying to spawnis in your path.
ENOENT 意味着spawn无法找到您要查找的二进制文件。确保您正在尝试的任何事情都spawn在您的道路上。
In this case you probably don't have gifsicle installed.
在这种情况下，您可能没有安装 gifsicle。
回答by Torun ünver
Fixed the problem. There was a problem with the permissions for assets- if gulp can't take all assets. Then always there will displayed an error. I deleted the assets manually. I think i must be careful with(out) the "sudo" - command...
修复了问题。资产权限存在问题- 如果 gulp 无法获取所有资产。然后总是会显示一个错误。我手动删除了资产。我想我必须小心（退出）“sudo” - 命令......
回答by Winnemucca
this would not pertain to your error, but that error code can also run if a person is running node on multiple servers with the same address at the same time from their terminal.
这与您的错误无关，但如果一个人同时从其终端在具有相同地址的多个服务器上运行节点，则该错误代码也可以运行。
回答by Patrick W. McMahon
I had this same error at work on my Mac Book Pro. None of the solutions fixed it. I finally fixed the problem by restarting my computer. I often don't shut my computer off at night and put it in sleep mode so if your computer has been running for a long time try restarting it and see if that works for you.
我在 Mac Book Pro 上工作时遇到了同样的错误。没有一个解决方案修复它。我终于通过重新启动计算机解决了这个问题。我通常不会在晚上关闭计算机并将其置于睡眠模式，因此如果您的计算机已经运行了很长时间，请尝试重新启动它，看看是否适合您。
回答by peter
so it throw an error ,Unhandled 'error' event,which means you need handle the error event,add function on this event and print the error,you will find the reason and your program will act normal.
所以它抛出一个错误，未处理的'错误'事件，这意味着你需要处理错误事件，在这个事件上添加函数并打印错误，你会找到原因并且你的程序会正常运行。
回答by DjimOnDev
Did you install imagemagick ?
你安装 imagemagick 了吗？
brew install imagemagick
