Attention

TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.

Reference Index

With Command Line (Recommended)

Why CLI?

As the reference index might take quite long, especially on instances not running it regularly, an update via CLI is recommended.

In a composer installation execute:

./vendor/bin/typo3 referenceindex:update

In a non-composer installation execute:

php ./typo3/sysext/core/bin/typo3 referenceindex:update

Tip

Use referenceindex:update 2> /dev/null to suppress the progress output (e.g. when the command is executed by a cronjob).

Without Command Line

Still in your old TYPO3 version, go to the "System" > "DB check" module and use the "Check and update global reference index" function.

Click on "Update reference index" to update the reference index. In case there is a timeout and you do not have CLI access (see above) you might have to run the update multiple times.