events.js:141投掷;//未处理'错误'事件
events.js: 141 throw er; // Unhandled 'error' event
我正试图在Mac操作系统上运行节点4.2.2，但我不明白为什么每次收到以下错误消息：
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$
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$
如果我输入"gulp-build"
检查是否有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端口时，就会发生这种情况，它总是FIFO。
祝你好运！！！
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。
要查找在同一端口上运行的当前进程，请使用：
MAC:
你可以试试netstat
netstat -anp tcp | grep 3000
对于OSX"El Capitan"，或者如果您的netstat不支持-p，请使用lsof
lsof -i tcp:3000
然后终止进程
kill pid
您可以尝试杀死所有节点进程使用：
killall -9 node
ENOENT表示spawn无法找到您要查找的二进制文件。确保你试图spawn的东西就在你的路上。
在这种情况下，您可能没有安装礼品卡。
修复了该问题。资产的权限出现问题-如果gullow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。我想我必须小心使用"sudo"命令。。。
这与您的错误无关，但如果一个人在多台服务器上同时从其终端运行具有相同地址的节点，则也可以运行错误代码。
您安装了imagemagik吗？
brew install imagemagick
我在Mac Book Pro上也遇到了同样的错误。没有一个解决方案能解决这个问题。我终于通过重新启动电脑解决了这个问题。我通常不会在晚上关闭电脑并将其置于睡眠模式，所以如果你的电脑已经运行了很长时间，试着重新启动它，看看这是否适合你。
所以它抛出了一个错误，Unhandled‘error’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，你的程序就会正常运行。
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