# Upgrade Graylog 5.1 to 5.2 **URL:** \ **Category:** Graylog Central (peer support)\ **Created:** [December 20, 2023, 2:59pm UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005 "2023-12-20T14:59:03Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Maw](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@Maw](https://community.graylog.org/u/Maw)\ **Post date:** [December 20, 2023, 2:59pm UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/1 "2023-12-20T14:59:03Z")
Hello, I upgraded the graylog server from 5.1.9 to 5.2.2 and now the webgui displays only “Loading component failed: g.colors is undefined.” ![webgui_error](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/3X/4/d/4d89884a098e69375dd942f35ca0b14fe1521d36.png) OS Information: Archlinux Package Version: Graylog-server 5.1.9 to Graylog-server 5.2.2 There is no error message in the log. Did I miss something during the upgrade or does anyone have an idea what that could be? Thanks, Martin ---
**Author:** ![patrickmann](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/patrickmann/32/9091_2.png) [@patrickmann](https://community.graylog.org/u/patrickmann)\ **Post date:** [December 21, 2023, 1:51pm UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/2 "2023-12-21T13:51:01Z")
Are there error messages in the browser console? ---
**Author:** ![Maw](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@Maw](https://community.graylog.org/u/Maw)\ **Post date:** [December 21, 2023, 2:51pm UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/3 "2023-12-21T14:51:13Z")
Yes, there are errors in the browser console. TypeError: g.colors is undefined m Sawmill.js:58 z GraylogThemeProvider.tsx:67 useMemo vendor.f53e43520a75fcc21e18.js:680 useMemo vendor.f53e43520a75fcc21e18.js:781 z GraylogThemeProvider.tsx:67 ne GraylogThemeProvider.tsx:77 dn vendor.f53e43520a75fcc21e18.js:680 Ri vendor.f53e43520a75fcc21e18.js:682 Pi vendor.f53e43520a75fcc21e18.js:682 Ui vendor.f53e43520a75fcc21e18.js:682 $s vendor.f53e43520a75fcc21e18.js:680 Ee vendor.f53e43520a75fcc21e18.js:680 unstable\_runWithPriority vendor.f53e43520a75fcc21e18.js:689 \_o vendor.f53e43520a75fcc21e18.js:680 Ee vendor.f53e43520a75fcc21e18.js:680 n0 vendor.f53e43520a75fcc21e18.js:689 onmessage vendor.f53e43520a75fcc21e18.js:689 4203 vendor.f53e43520a75fcc21e18.js:689 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 4142 vendor.f53e43520a75fcc21e18.js:689 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 4448 vendor.f53e43520a75fcc21e18.js:679 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 3935 vendor.f53e43520a75fcc21e18.js:682 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 zKLlqmvB delegated 3935 from dll-reference \_\_vendor:1 Webpack 8 mn Fut6 mn uf O C vendor.f53e43520a75fcc21e18.js:680:76195 TypeError: g.colors is undefined m Sawmill.js:58 z GraylogThemeProvider.tsx:67 useMemo vendor.f53e43520a75fcc21e18.js:680 useMemo vendor.f53e43520a75fcc21e18.js:781 z GraylogThemeProvider.tsx:67 ne GraylogThemeProvider.tsx:77 dn vendor.f53e43520a75fcc21e18.js:680 Ri vendor.f53e43520a75fcc21e18.js:682 Pi vendor.f53e43520a75fcc21e18.js:682 Ui vendor.f53e43520a75fcc21e18.js:682 $s vendor.f53e43520a75fcc21e18.js:680 Ee vendor.f53e43520a75fcc21e18.js:680 unstable\_runWithPriority vendor.f53e43520a75fcc21e18.js:689 \_o vendor.f53e43520a75fcc21e18.js:680 Ee vendor.f53e43520a75fcc21e18.js:680 n0 vendor.f53e43520a75fcc21e18.js:689 onmessage vendor.f53e43520a75fcc21e18.js:689 4203 vendor.f53e43520a75fcc21e18.js:689 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 4142 vendor.f53e43520a75fcc21e18.js:689 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 4448 vendor.f53e43520a75fcc21e18.js:679 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 3935 vendor.f53e43520a75fcc21e18.js:682 **webpack\_require** vendor.f53e43520a75fcc21e18.js:858 zKLlqmvB delegated 3935 from dll-reference \_\_vendor:1 Webpack 8 mn Fut6 mn uf O C vendor.f53e43520a75fcc21e18.js:680:76195 ---
**Author:** ![patrickmann](https://sea2.discourse-cdn.com/flex016/user_avatar/community.graylog.org/patrickmann/32/9091_2.png) [@patrickmann](https://community.graylog.org/u/patrickmann)\ **Post date:** [December 22, 2023, 8:58am UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/4 "2023-12-22T08:58:51Z")
Looks like a problem in theming. Have you done any customizations there? ---
**Author:** ![Maw](https://avatars.discourse-cdn.com/v4/letter/m/58f4c7/32.png) [@Maw](https://community.graylog.org/u/Maw)\ **Post date:** [December 22, 2023, 11:04am UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/5 "2023-12-22T11:04:57Z")
I haven’t made any customizations or modifications. Sorry, I forgot to mention that the error happens after the login, the login page functions properly. I have a reverse proxy in front of it with the following configuration. ####HTTP settings#### http\_bind\_address = 127.0.0.1:9000 http\_publish\_uri = https:// http\_external\_uri = https:/// web\_max\_header\_size = 8192 http\_thread\_pool\_size = 16 trusted\_proxies = 127.0.0.1/32 rest\_enable\_cors = false http\_enable\_gzip = true http\_max\_header\_size = 8192 http\_thread\_pool\_size = 16 http\_enable\_tls = false I used the [https://packages.graylog2.org/releases/graylog/graylog-5.2.2.tgz](https://packages.graylog2.org/releases/graylog/graylog-5.2.2.tgz) Graylog package. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/graylog/original/3X/c/7/c7c09c6b5099570133d6502b83f50ba4430de5b6.png) [@system](https://community.graylog.org/u/system)\ **Post date:** [January 5, 2024, 11:05am UTC](https://community.graylog.org/t/upgrade-graylog-5-1-to-5-2/31005/6 "2024-01-05T11:05:20Z")
Closed on January 5, 2024, 11:05am UTC This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.