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Published Sep. 10, 2025

Internal Server Error after Upgrade

Written By

Brian Suh

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A common error is that sometimes when certain pages display an internal server error and there is no stacktrace. If there was a custom theme before the upgrade the page layouts will still reference them and if one has not installed or recompiled the layouts in a new sdk it will create a internal server error.

Resolution

The Solution is to recompile the layouts / themes in the new plugins SDK. Another quick workaround until then, is to switch to a default page layout by doing the following:

  1. Go to the page or view site pages from control panel.
  2. Select Manage Pages.
  3. Change Layout to a default Liferay layout.

Additional Information

An easy test is to change layouts, as this usually only occurs just after an upgrade.

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