# 升级到 2.0.0beta3 后仪表盘无法启动

**URL:** <https://meta.discourse.org/t/dashboard-doesnt-want-to-come-up-after-upgrade-to-2-0-0beta3/81848>\
**Category:** Support\
**Created:** [2018年三月1日 00:37 UTC](https://meta.discourse.org/t/dashboard-doesnt-want-to-come-up-after-upgrade-to-2-0-0beta3/81848 "2018-03-01T00:37:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![axfelix](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/axfelix/32/65166_2.png) [@axfelix](https://meta.discourse.org/u/axfelix)\
**Post date:** [2018年三月1日 00:37 UTC](https://meta.discourse.org/t/dashboard-doesnt-want-to-come-up-after-upgrade-to-2-0-0beta3/81848/1 "2018-03-01T00:37:29Z")

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At least I think that’s the version I just updated to, but I’m having trouble checking…

Chrome debugger is giving me this breakpoint:

```
"SyntaxError: Unexpected token < in JSON at position 0
    at JSON.parse (<anonymous>)
    at ie.parseJSON (https://selectbutton.net/assets/ember_jquery-a8dcbd325e04410f036f2a791d66d8316c48c5387acdd914de99a5dd6afb3cd3.js:3:8322)
    at W (https://selectbutton.net/assets/ember_jquery-a8dcbd325e04410f036f2a791d66d8316c48c5387acdd914de99a5dd6afb3cd3.js:1:11782)
    at r (https://selectbutton.net/assets/ember_jquery-a8dcbd325e04410f036f2a791d66d8316c48c5387acdd914de99a5dd6afb3cd3.js:3:9673)
    at XMLHttpRequest.<anonymous> (https://selectbutton.net/assets/ember_jquery-a8dcbd325e04410f036f2a791d66d8316c48c5387acdd914de99a5dd6afb3cd3.js:3:15842)"

```

Everything else seems hunky dory though

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<div class="post-metadata">

**Author:** ![axfelix](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/axfelix/32/65166_2.png) [@axfelix](https://meta.discourse.org/u/axfelix)\
**Post date:** [2018年三月1日 00:45 UTC](https://meta.discourse.org/t/dashboard-doesnt-want-to-come-up-after-upgrade-to-2-0-0beta3/81848/2 "2018-03-01T00:45:33Z")

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Nevermind, just had to wait for the backup that was apparently initiated after upgrade to finish. We’ll call it a very generously defined race condition when a weak server is under heavy load.

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<div class="post-metadata">

**Author:** ![jomaxro](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jomaxro/32/126216_2.png) [@jomaxro](https://meta.discourse.org/u/jomaxro)\
**Post date:** [2018年三月1日 23:00 UTC](https://meta.discourse.org/t/dashboard-doesnt-want-to-come-up-after-upgrade-to-2-0-0beta3/81848/3 "2018-03-01T23:00:06Z")

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