[TYPO3-english] problem after upgrading to of 7.6

[Steffen Liebig]

Hi Xavier,

thanks for your fast answer. Unfortunately, the system doesn't let me 
enter my backend so I can't install the compatibility pack.

Meanwhile, I followed your instruction and got the following:

#1: PHP Catchable Fatal Error: Argument 3 passed to 
TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin() must be of 
the type array, string given, called in 
/home/www/typo3751/typo3conf/ext/clubdaten/ext_tables.php on line 10 and 
defined in 
/home/www/typo3751/typo3_src-7.6.0/typo3/sysext/extbase/Classes/Utility/ExtensionUtility.php 
line 45

TYPO3\CMS\Core\Error\Exception thrown in file
/home/www/typo3751/typo3_src-7.6.0/typo3/sysext/core/Classes/Error/ErrorHandler.php 
in line 111.

This error message started with

1 call_user_func(Closure)

/home/www/typo3751/typo3_src-7.6.0/typo3/index.php:

00019:     $classLoader = require __DIR__ . '/../vendor/autoload.php';
00020:     (new \TYPO3\CMS\Backend\Http\Application($classLoader))->run();
00021: });

followed by

2 {closure}()

and

3 TYPO3\CMS\Backend\Http\Application::run()

/home/www/typo3751/typo3_src-7.6.0/typo3/index.php:

00018: call_user_func(function () {
00019:     $classLoader = require __DIR__ . '/../vendor/autoload.php';
00020:     (new \TYPO3\CMS\Backend\Http\Application($classLoader))->run();
00021: });

where in 1) line 21 and in 3) line 20 where marked by a white underlay.

Now my question would be if this can be fixed by a non-programmer like 
me :-).

Cu, Steffen

Am 26.11.2015 um 18:35 schrieb Xavier Perseguers:
> Dear Steffen,
>
>> I found that t3lib_extMgM:: should be changed to
>> \TYPO3\CMS\Core\Utility\GeneralManagementUtility::
>
> No, please use
> https://github.com/FriendsOfTYPO3/compatibility6/blob/master/Migrations/Code/ClassAliasMap.php
> to see that it should be changed to
>
> \TYPO3\CMS\Core\Utility\ExtensionManagementUtility
>
> You may temporarily install extension "compatibility6", this will let
> you upgrade more easily if you have other extensions still using
> outdated API.
>
> Kind regards
>