将Rails应用程序部署到Heroku时的语法错误：ExecJS :: RuntimeError：SyntaxError：意外字符 [英] Syntax error when deploying Rails app to Heroku: ExecJS::RuntimeError: SyntaxError: Unexpected character

问题描述

我正在尝试将我的应用程序部署到Heroku，但是它引发了这个错误。

ExecJS :: RuntimeError：SyntaxError：Unexpected字符`（行：
14577，列：33，位置：440811

我认为这是错误的

根据Iceman的建议，我尝试运行该命令

rake资产：预编译RAILS_ENV = development

它说

I，[2017-01-26T16：32：25.173928＃2674]信息-：写作> / Users /Gana/Documents/bombay/bombaydarbar/public/assets/circle->cb2239e32deac2eba5c693c3574b562595f1f933a8896866e47c170bf87c77e4.png
I，[2017-01-26T16：32：25.209986＃2674 / s / /孟买/孟买/巴尔/公共/资产/ FB-> e361b3ecca9c24c6c05646b170fe25fcc185fa 2eafb7aa46780253c8a9c79a04.png
I，[2017-01-26T16：32：25.225079＃2674] INFO-：编写> / Users / Gana / Documents / bombay / bombaydarbar / public / assets / los-> f083228761f6ede67e04a1a73906b4585b b $ b I，[2017-01-26T16：32：25.253212＃2674]信息-：编写> / Users / Gana / Documents / bombay / bombaydarbar / public / assets / main-> 221235002689ad3847a67a05ce3608ebed4ee709be6fcf61bc0ccef2001b487f.jpg
I ，[2017-01-26T16：32：25.272155＃2674]信息-：编写/用户/加纳/文档/孟买/孟买/巴尔/公共/资产/us-background-638489d758e08327ad62f883f11397bc870df84038b502ea17c3e2510cac6ef4.jpg
I，[ 01-26T16：32：25.313969＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴/公共/资产/zaisan-5f83c22eef3372c96199aad34ab9ad1744d6124e845a01267fcabcec39e2e948.jpg
I16，[2017-01-32T 25.426829＃2674]信息-：写作/用户/加纳/文档/孟买/孟买达巴尔/公共/资产/应用程序-cadb51eb7487d2788eae31912fc18cc28ffaf8d48ea022d 2a8a49c121415d7f8.js
I，[2017-01-26T16：32：25.427380＃2674] INFO-：编写/ Users / Gana / Documents / bombay / bombaydarbar / public / assets / application-cadb51eb7487d2788eae31912fc18cc28ffaf8d48ea022d121415 b $ b I，[2017-01-26T16：32：25.540537＃2674]信息-：编写/用户/加纳/文档/孟买/孟买/孟买/巴尔/公共/资产/应用程序8b6461ded0e51f6232fa5606fc47c47cd9b64684fbbeccd9fed16d7a0a66b $ ee.css 2017-01-26T16：32：25.540807＃2674]信息-：编写/用户/加纳/文档/孟买/孟买/巴尔/公共/资产/应用程序8b6461ded0e51f6232fa5606fc47c47cd9b64684fbbeccd9fed16d7a0a66deee.css.gz $ b-2017 26T16：32：25.543684＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴尔/公共/资产/fontawesome-webfont-7bfcab6db99d5cfbf1705ca0536ddc78585432cc5fa41bbd7ad0f009033b2979.Eot
I26 25.597933＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴尔/公共/资产/ fontawesome-webfont-7bfcab6db99d5cfbf1705c a0536ddc78585432cc5fa41bbd7ad0f009033b2979.eot.gz
I，[2017-01-26T16：32：25.601098＃2674] INFO-：编写/ Users / Gana / Documents / bombay / bombaydarbar / public / assets / fontawesome-webfont-2adefcbcd4a7f4b7d4a7f4b7d3a3df3d3d3df3c3d6a3d3f6b4a7f3d7a3df3c4a7d3d7f3b6a3d7a3df2b3c woff2
I，[2017-01-26T16：32：25.638449＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴尔/公共/资产/ fontawesome-webfont-ba0c59deb5450f5cb41b3f93609ee2d0d995415877dfaoffe4a b我，[2017-01-26T16：32：25.675384＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴/公共/资产/ fontawesome-webfont-aa58f33f239a0fb02f5c7a6c45c043d7a9ac9a093335806694tddd4d4d 2017-01-26T16：32：25.716776＃2674]信息-：编写/用户/加纳/文档/孟买/孟买/巴尔/公共/资产/ fontawesome-webfont-aa58f33f239a0fb02f5c7a6c45c043d7a9ac9a093335806694fd6d4edb0b。 01-26T16：32：25.721169＃2674]信息-：编写/用户/加纳/文档/孟买/孟买达巴/ pu blic / assets / fontawesome-webfont-ad6157926c1622ba4e1d03d478f1541368524bfc46f51e42fe0d945f7ef323e4.svg
I，[2017-01-26T16：32：25.808396＃2674] INFO-：编写/用户/ Gana / Bay /文件/文档/ bom fontawesome-webfont-ad6157926c1622ba4e1d03d478f1541368524bfc46f51e42fe0d945f7ef323e4.svg.gz

我的图像文件有问题吗？

解决方案

正如一些用户提到的，问题是Rails JS uglifier无法处理ES6模板文字。

Uglifier现在具有支持ES6 / ES2015 +语法的Harmony模式。

您可以通过传递：harmony =>来启用它



打开 config / environments / production.rb

p>

替换

  config.assets.js_compressor =：uglifier 
  

与

  config.assets.js_compressor = Uglifier.new（harmony：true）
  

I am trying to deploy my app to Heroku but its throwing me this error.

"ExecJS::RuntimeError: SyntaxError: Unexpected character '`' (line: 14577, col: 33, pos: 440811"

I assume there is something wrong with the coffeescript/javascript. I have deleted all of my coffeescript files and I dont know what I'm doing wrong.

As suggested by Iceman, ive tried running the command

rake assets:precompile RAILS_ENV=development

and it says

I, [2017-01-26T16:32:25.173928 #2674] INFO -- : Writing >/Users/Gana/Documents/bombay/bombaydarbar/public/assets/circle->cb2239e32deac2eba5c693c3574b562595f1f933a8896866e47c170bf87c77e4.png I, [2017-01-26T16:32:25.209986 #2674] INFO -- : Writing >/Users/Gana/Documents/bombay/bombaydarbar/public/assets/fb->e361b3ecca9c24c6c05646b170fe25fcc185fa2eafb7aa46780253c8a9c79a04.png I, [2017-01-26T16:32:25.225079 #2674] INFO -- : Writing >/Users/Gana/Documents/bombay/bombaydarbar/public/assets/los->f083228761f6ede67e04a1a73906b4585bc5cfd3154ffec4861c4f04cf95aa32.jpg I, [2017-01-26T16:32:25.253212 #2674] INFO -- : Writing >/Users/Gana/Documents/bombay/bombaydarbar/public/assets/main->221235002689ad3847a67a05ce3608ebed4ee709be6fcf61bc0ccef2001b487f.jpg I, [2017-01-26T16:32:25.272155 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/us-background-638489d758e08327ad62f883f11397bc870df84038b502ea17c3e2510cac6ef4.jpg I, [2017-01-26T16:32:25.313969 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/zaisan-5f83c22eef3372c96199aad34ab9ad1744d6124e845a01267fcabcec39e2e948.jpg I, [2017-01-26T16:32:25.426829 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/application-cadb51eb7487d2788eae31912fc18cc28ffaf8d48ea022d2a8a49c121415d7f8.js I, [2017-01-26T16:32:25.427380 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/application-cadb51eb7487d2788eae31912fc18cc28ffaf8d48ea022d2a8a49c121415d7f8.js.gz I, [2017-01-26T16:32:25.540537 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/application-8b6461ded0e51f6232fa5606fc47c47cd9b64684fbbeccd9fed16d7a0a66deee.css I, [2017-01-26T16:32:25.540807 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/application-8b6461ded0e51f6232fa5606fc47c47cd9b64684fbbeccd9fed16d7a0a66deee.css.gz I, [2017-01-26T16:32:25.543684 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-7bfcab6db99d5cfbf1705ca0536ddc78585432cc5fa41bbd7ad0f009033b2979.eot I, [2017-01-26T16:32:25.597933 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-7bfcab6db99d5cfbf1705ca0536ddc78585432cc5fa41bbd7ad0f009033b2979.eot.gz I, [2017-01-26T16:32:25.601098 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-2adefcbc041e7d18fcf2d417879dc5a09997aa64d675b7a3c4b6ce33da13f3fe.woff2 I, [2017-01-26T16:32:25.638449 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-ba0c59deb5450f5cb41b3f93609ee2d0d995415877ddfa223e8a8a7533474f07.woff I, [2017-01-26T16:32:25.675384 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-aa58f33f239a0fb02f5c7a6c45c043d7a9ac9a093335806694ecd6d4edc0d6a8.ttf I, [2017-01-26T16:32:25.716776 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-aa58f33f239a0fb02f5c7a6c45c043d7a9ac9a093335806694ecd6d4edc0d6a8.ttf.gz I, [2017-01-26T16:32:25.721169 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-ad6157926c1622ba4e1d03d478f1541368524bfc46f51e42fe0d945f7ef323e4.svg I, [2017-01-26T16:32:25.808396 #2674] INFO -- : Writing /Users/Gana/Documents/bombay/bombaydarbar/public/assets/fontawesome-webfont-ad6157926c1622ba4e1d03d478f1541368524bfc46f51e42fe0d945f7ef323e4.svg.gz

is there something wrong with my image files?

解决方案

The problem, as some of the users has mentioned, is Rails JS uglifier not being able to handle ES6 template literals.

Uglifier now has a Harmony mode which supports ES6 / ES2015+ syntax.

You can enable it by passing :harmony => true option to Uglifier.

Open config/environments/production.rb

Replace

config.assets.js_compressor = :uglifier

with

config.assets.js_compressor = Uglifier.new(harmony: true)

这篇关于将Rails应用程序部署到Heroku时的语法错误：ExecJS :: RuntimeError：SyntaxError：意外字符的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！