TYPO3 Exception 1338996122
Note
Below, the TYPO3 community may have provided additional information or solutions for this exception. However, these may or may not apply to your particular case. If you can provide more information, you should come back here and add your experience and solution steps to this issue once you have resolved it.
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Package "..." is already registered.
Accidental double install
When installing extensions twice (for example by inadvertently using a copied folder)
this exception might occur. To get rid of it again, remove the extension from
the typo3conf/
manually.
Duplicate composer.
package name:
Another package uses the same name in its composer.
file. Even if
composer mode
is not enabled and the composer file is just copied, it
will cause the TYPO3 Package Manager to throw the correct exception.
This may happen if you copy an extension, e.g. from
typo3conf/
to typo3conf/
. Just search the
filesystem for any other instances of the same package name and rename
one of them.
Warning
Composer files allow aliases for package names
in the replace
section, catch them as well.