Template render error: (unknown path)

[mnlbox]

Node version(node -v):
6.10.2

Hexo and Plugin version(npm ls --depth 0):
├── hexo@3.3.5
├── hexo-generator-feed@1.2.0
├── hexo-generator-index@0.2.1
├── hexo-generator-seo-friendly-sitemap@0.0.21
├── hexo-generator-tag@0.2.0
├── hexo-renderer-ejs@0.2.0
├── hexo-renderer-marked@0.2.11
└── hexo-server@0.2.0

I'm working on a big site (near 10000 posts and more than 100000 tags) based on Hexo. It's return below error after 1 hour process:

Template render error: (unknown path) [Line 1, Column 1915]
  expected variable end
    at Object.exports.prettifyError (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/nunjucks/src/lib.js:34:15)
    at new_cls.render (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/nunjucks/src/environment.js:469:27)
    at new_cls.renderString (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/nunjucks/src/environment.js:327:21)
    at /media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/hexo/lib/extend/tag.js:66:9
    at Promise._execute (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/debuggability.js:300:9)
    at Promise._resolveFromExecutor (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:483:18)
    at new Promise (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:79:10)
    at Tag.render (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/hexo/lib/extend/tag.js:64:10)
    at Object.tagFilter [as onRenderEnd] (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/hexo/lib/hexo/post.js:253:16)
    at /media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/hexo/lib/hexo/render.js:65:19
    at tryCatcher (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:512:31)
    at Promise._settlePromise (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:569:18)
    at Promise._settlePromise0 (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:614:10)
    at Promise._settlePromises (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/promise.js:693:18)
    at Async._drainQueue (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/async.js:133:16)
    at Async._drainQueues (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/async.js:143:10)
    at Immediate.Async.drainQueues (/media/mnlbox/883d88ab-430b-4dc8-aff1-7135bb7e1516/Projects/Hexo Static Generator/node_modules/bluebird/js/release/async.js:17:14)
    at runCallback (timers.js:666:20)
    at tryOnImmediate (timers.js:639:5)
    at processImmediate [as _immediateCallback] (timers.js:611:5)

Suggestion: I think it's better to return bad file path for simpler debug on any error rather than Template render error: (unknown path) message.

Question 1: How we can find which file cause this error now?

Question 2: Can you list bad character in post file (Front matter and markdown part)?
Now I remove & | and * from tags because it cause error for me and also remove < > { } ] and [ from markdown file content. Can you help me to complete this list?

Related Issues: #2384 , #1837

[NoahDragon]

As the error raised inside the render function(https://github.com/hexojs/hexo/blob/master/lib/extend/tag.js#L66), the path information has already lost.

Another way to avoid this error is to get the version with the #2478 change (not in the main build). You could set a flag disable_nunjucks into _config.yml file to skip rendering tags. But this method is not recommended.

For the Tag renderer, it uses the nunjucks template. So the bad character is usually {{ }}. However, based on the error message you got, it may not cause only by bad characters. mozilla/nunjucks#650

I also could help you to identify the error files if those files are okay to share.

[mnlbox]

@NoahDragon I think disable_nunjucks does not work because it's related PR not merged now #2478.
I want use official version of Hexo. 😉 Is it possible to merge that PR?
My files is not public for all if you can please provide an email to me so I can send my sites post file only to you.

[NoahDragon]

For the disable_nunjucks changes, we won't merge it to the official Hexo, as it is only a temporal fix.
Here is my email: hi@abnerchou.me

[stale]

This issue has been automatically marked as stale because lack of recent activity. It will be closed if no further activity occurs. Thank you for your contributions.