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An unknown error occurred - Call to undefined function Illuminate\Support\mb_strimwidth() #2970

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opened 2026-02-05 05:55:11 +03:00 by OVERLORD · 0 comments
OVERLORD commented 2026-02-05 05:55:11 +03:00
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Originally created by @user-4711 on GitHub (Aug 18, 2022).

Describe the Bug

After upgrading to the latest version of Bookstack (from 21.05), all existing pages can't be openend.
Without debug mode there is just the message An unknown error occurred, with debug on I got the following:

Error
Illuminate\View\ViewException
Call to undefined function Illuminate\Support\mb_strimwidth() (View: /var/www/bookstack/resources/views/pages/show.blade.php)

Environment
PHP Version: 7.4.28
BookStack Version: v22.07.3
Theme Configured:

Stack Trace
#0 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php(60): Illuminate\View\Engines\CompilerEngine->handleViewException()
#1 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php(61): Illuminate\View\Engines\PhpEngine->evaluatePath()
#2 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(139): Illuminate\View\Engines\CompilerEngine->get()
#3 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(122): Illuminate\View\View->getContents()
#4 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate\View\View->renderContents()
#5 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Response.php(69): Illuminate\View\View->render()
#6 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Response.php(35): Illuminate\Http\Response->setContent()
#7 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(820): Illuminate\Http\Response->__construct()
#8 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(789): Illuminate\Routing\Router::toResponse()
#9 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(721): Illuminate\Routing\Router->prepareResponse()
#10 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}()
#11 /var/www/bookstack/app/Http/Middleware/Authenticate.php(23): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#12 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\Authenticate->handle()
#13 /var/www/bookstack/app/Http/Middleware/Localization.php(84): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#14 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\Localization->handle()
#15 /var/www/bookstack/app/Http/Middleware/RunThemeActions.php(26): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#16 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\RunThemeActions->handle()
#17 /var/www/bookstack/app/Http/Middleware/CheckEmailConfirmed.php(47): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#18 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\CheckEmailConfirmed->handle()
#19 /var/www/bookstack/app/Http/Middleware/PreventAuthenticatedResponseCaching.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#20 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\PreventAuthenticatedResponseCaching->handle()
#21 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#22 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle()
#23 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#24 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle()
#25 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#26 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest()
#27 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle()
#28 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#29 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle()
#30 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#31 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle()
#32 /var/www/bookstack/app/Http/Middleware/ApplyCspRules.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#33 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\ApplyCspRules->handle()
#34 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#35 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(723): Illuminate\Pipeline\Pipeline->then()
#36 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(698): Illuminate\Routing\Router->runRouteWithinStack()
#37 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(662): Illuminate\Routing\Router->runRoute()
#38 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(651): Illuminate\Routing\Router->dispatchToRoute()
#39 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(167): Illuminate\Routing\Router->dispatch()
#40 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}()
#41 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#42 /var/www/bookstack/app/Http/Middleware/TrustProxies.php(41): Illuminate\Http\Middleware\TrustProxies->handle()
#43 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\TrustProxies->handle()
#44 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#45 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle()
#46 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle()
#47 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#48 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle()
#49 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#50 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle()
#51 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}()
#52 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(142): Illuminate\Pipeline\Pipeline->then()
#53 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter()
#54 /var/www/bookstack/public/index.php(53): Illuminate\Foundation\Http\Kernel->handle()
#55 {main}

If I add an /edit to the URL, I can see/use the page editor and all contents of the page without issue, but saving the page doesn't do anything. Creating a template from the page and create a new page from the template throws the next error message:

Error
Call to undefined function mb_strcut()

Creating new pages and opening them works like a charm.

edit: I also tried a fresh git clone and copied the old .env file, but that didn't help.

Steps to Reproduce

open a page

Expected Behaviour

see the content

Screenshots or Additional Context

No response

Browser Details

Chromium 102, Firefox 103.2

Exact BookStack Version

22.07.3

PHP Version

7.4.28

Hosting Environment

Debian 11
Apache 2.4.54
PHP 7.4.28

no reverse proxy

Originally created by @user-4711 on GitHub (Aug 18, 2022). ### Describe the Bug After upgrading to the latest version of Bookstack (from 21.05), all existing pages can't be openend. Without debug mode there is just the message `An unknown error occurred`, with debug on I got the following: ``` Error Illuminate\View\ViewException Call to undefined function Illuminate\Support\mb_strimwidth() (View: /var/www/bookstack/resources/views/pages/show.blade.php) ``` ``` Environment PHP Version: 7.4.28 BookStack Version: v22.07.3 Theme Configured: ``` ``` Stack Trace #0 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php(60): Illuminate\View\Engines\CompilerEngine->handleViewException() #1 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php(61): Illuminate\View\Engines\PhpEngine->evaluatePath() #2 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(139): Illuminate\View\Engines\CompilerEngine->get() #3 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(122): Illuminate\View\View->getContents() #4 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/View.php(91): Illuminate\View\View->renderContents() #5 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Response.php(69): Illuminate\View\View->render() #6 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Response.php(35): Illuminate\Http\Response->setContent() #7 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(820): Illuminate\Http\Response->__construct() #8 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(789): Illuminate\Routing\Router::toResponse() #9 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(721): Illuminate\Routing\Router->prepareResponse() #10 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Routing\Router->Illuminate\Routing\{closure}() #11 /var/www/bookstack/app/Http/Middleware/Authenticate.php(23): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #12 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\Authenticate->handle() #13 /var/www/bookstack/app/Http/Middleware/Localization.php(84): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #14 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\Localization->handle() #15 /var/www/bookstack/app/Http/Middleware/RunThemeActions.php(26): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #16 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\RunThemeActions->handle() #17 /var/www/bookstack/app/Http/Middleware/CheckEmailConfirmed.php(47): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #18 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\CheckEmailConfirmed->handle() #19 /var/www/bookstack/app/Http/Middleware/PreventAuthenticatedResponseCaching.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #20 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\PreventAuthenticatedResponseCaching->handle() #21 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php(78): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #22 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle() #23 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php(49): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #24 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\View\Middleware\ShareErrorsFromSession->handle() #25 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(121): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #26 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php(64): Illuminate\Session\Middleware\StartSession->handleStatefulRequest() #27 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Session\Middleware\StartSession->handle() #28 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php(37): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #29 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle() #30 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php(67): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #31 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Cookie\Middleware\EncryptCookies->handle() #32 /var/www/bookstack/app/Http/Middleware/ApplyCspRules.php(33): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #33 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\ApplyCspRules->handle() #34 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #35 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(723): Illuminate\Pipeline\Pipeline->then() #36 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(698): Illuminate\Routing\Router->runRouteWithinStack() #37 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(662): Illuminate\Routing\Router->runRoute() #38 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Routing/Router.php(651): Illuminate\Routing\Router->dispatchToRoute() #39 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(167): Illuminate\Routing\Router->dispatch() #40 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(128): Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure}() #41 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Http/Middleware/TrustProxies.php(39): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #42 /var/www/bookstack/app/Http/Middleware/TrustProxies.php(41): Illuminate\Http\Middleware\TrustProxies->handle() #43 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): BookStack\Http\Middleware\TrustProxies->handle() #44 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php(21): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #45 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TrimStrings.php(40): Illuminate\Foundation\Http\Middleware\TransformsRequest->handle() #46 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\TrimStrings->handle() #47 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php(27): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #48 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle() #49 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/PreventRequestsDuringMaintenance.php(86): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #50 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(167): Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance->handle() #51 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php(103): Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure}() #52 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(142): Illuminate\Pipeline\Pipeline->then() #53 /var/www/bookstack/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php(111): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter() #54 /var/www/bookstack/public/index.php(53): Illuminate\Foundation\Http\Kernel->handle() #55 {main} ``` If I add an /edit to the URL, I can see/use the page editor and all contents of the page without issue, but saving the page doesn't do anything. Creating a template from the page and create a new page from the template throws the next error message: ``` Error Call to undefined function mb_strcut() ``` Creating new pages and opening them works like a charm. edit: I also tried a fresh git clone and copied the old .env file, but that didn't help. ### Steps to Reproduce open a page ### Expected Behaviour see the content ### Screenshots or Additional Context _No response_ ### Browser Details Chromium 102, Firefox 103.2 ### Exact BookStack Version 22.07.3 ### PHP Version 7.4.28 ### Hosting Environment Debian 11 Apache 2.4.54 PHP 7.4.28 no reverse proxy
OVERLORD added the 🐛 Bug label 2026-02-05 05:55:11 +03:00
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