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6 changes: 3 additions & 3 deletions user_guide_src/source/installation/upgrade_430.rst
Original file line number Diff line number Diff line change
Expand Up @@ -15,10 +15,10 @@ Please refer to the upgrade instructions corresponding to your installation meth
Trouble Shooting
****************

Call to undefined method Composer\InstalledVersions::getAllRawData()
====================================================================
Call to undefined method Composer\\InstalledVersions::getAllRawData()
=====================================================================

Some users reported "*Fatal error: Uncaught Error: Call to undefined method Composer\InstalledVersions::getAllRawData()*" after upgrading with Composer.
Some users reported "*Fatal error: Uncaught Error: Call to undefined method Composer\\InstalledVersions::getAllRawData()*" after upgrading with Composer.

If you get the error, upgrade your ``composer`` tool, and delete the **vendor/**
directory, and run ``composer update`` again.
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