Plesk for Linux
kb: fixed
kb: bug
Applicable to:
- Plesk for Linux
Symptoms
During a Plesk upgrade to Plesk Obsidian 18.0.37, the following error is shown:
PLESK_INFO: ERROR: Upgrade step 2021-07-01-11-34-45_TrimPlanNames.php failed with code 255 and output:
PHP Fatal error: Uncaught JMS\Serializer\Exception\RuntimeException: Could not decode JSON, syntax error - malformed JSON. in /usr/local/psa/admin/plib/vendor/jms/serializer/src/JsonDeserializationVisitor.php:240
Cause
Product issue:
-
#PPPM-13114 "Upgrading to the latest Plesk Obsidian version no longer sometimes fails with the “PHP Fatal error: Uncaught JMS\Serializer\Exception\RuntimeException: Could not decode JSON, syntax error - malformed JSON.” error."
Fixed in:- Plesk Obsidian 30 August 2021
- Plesk Obsidian 03 August 2021
Resolution
Please consider updating your server:
Workaround
If update is not possible for some reason you may try the following
workaround
The error may be safely ignored.
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