![How to fix Metadata file supplied is not a supported version [39] with an updated il2cppdumper](https://androidrebels.com/wp-content/uploads/2026/06/xil2cppdumper-error-39.jpg.pagespeed.ic.QeLk48YaYk.jpg)
How to fix Metadata file supplied is not a supported version [39] with an updated il2cppdumper
Seeing System.NotSupportedException about metadata version 39 when dumping a Unity IL2CPP app? Here is what that error actually means, why it appears with newer metadata, and how researchers have addressed it using updated tools. This article is for informational purposes only.
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29 June 2026
