Synthesis Error on any patch. Method Not Found

[DCDogWalks]

I've run into a problem with Synthesis (latest version and previous version). Whenever I run it (I use MO2) it will error after a few seconds with the same error regardless of what patches I have added. Following is one of the error message (all seem to mention the bit in the subject line):

Running (""): "dotnet" "run --project \"C:\Users\david\AppData\Local\Temp\Synthesis\2bb878d8-510a-4adb-bb95-00e8a35c3d60\Git\e6a9f730-2033-4be2-9524-70ed61204b33\Runner\SpellAbsorbFix\SpellAbsorbFix.csproj\" --runtime win-x64 -c Release --no-build run-patcher --DataFolderPath \"C:\Steam\steamapps\common\Skyrim Special Edition\Data\" --ExtraDataFolder \"D:\Skyrim Tools\Synthesis\Data\Skyrim Special Edition\spellabsorbfix\" --GameRelease SkyrimSE --ModKey Synthesis.esp --LoadOrderFilePath C:\Users\david\AppData\Local\Temp\Synthesis\2bb878d8-510a-4adb-bb95-00e8a35c3d60\Workspace\Synthesis\Plugins.txt --LoadOrderIncludesCreationClub --OutputPath \"C:\Users\david\AppData\Local\Temp\Synthesis\2bb878d8-510a-4adb-bb95-00e8a35c3d60\Workspace\Synthesis\1 - spellabsorbfix\Synthesis.esp\" --PatcherName spellabsorbfix" System.MissingMethodException: Method not found: 'Mutagen.Bethesda.GameCategory Mutagen.Bethesda.GameReleaseExt.ToCategory(Mutagen.Bethesda.GameRelease)'. at Mutagen.Bethesda.Synthesis.SynthesisPipeline.Run(RunSynthesisMutagenPatcher args, Nullable1 exportKey, IFileSystem fileSystem)
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
at Mutagen.Bethesda.Synthesis.SynthesisPipeline.Run(RunSynthesisMutagenPatcher args, Nullable1 exportKey, IFileSystem fileSystem) at Mutagen.Bethesda.Synthesis.SynthesisPipeline.<>c__DisplayClass43_0.<<Run>b__0>d.MoveNext() in D:\a\Synthesis\Synthesis\Mutagen.Bethesda.Synthesis\Pipeline\SynthesisPipeline.cs:line 472 --- End of stack trace from previous location --- at Mutagen.Bethesda.Synthesis.SynthesisPipeline.HandleOnShutdown(Func1 a) in D:\a\Synthesis\Synthesis\Mutagen.Bethesda.Synthesis\Pipeline\SynthesisPipeline.cs:line 833
at Mutagen.Bethesda.Synthesis.SynthesisPipeline.Run(RunSynthesisMutagenPatcher args, IFileSystem fileSystem) in D:\a\Synthesis\Synthesis\Mutagen.Bethesda.Synthesis\Pipeline\SynthesisPipeline.cs:line 460
at Mutagen.Bethesda.Synthesis.SynthesisPipeline.<>c__DisplayClass42_0.<b__1>d.MoveNext() in D:\a\Synthesis\Synthesis\Mutagen.Bethesda.Synthesis\Pipeline\SynthesisPipeline.cs:line 432`

[DCDogWalks]

Update. I've also tried a fresh Synthesis install and ran it against the actual Skyrim game folder with just a couple of mods installed directly. Same error crops up.

[SerkelDays]

Put all the patches in match, that fixes my same error

[Noggog]

This is an indication that you're running the patcher with versions of Mutagen/Synthesis that are misaligned. What versions have you set the patcher to run with?

Few things to try:

• Do the recommended setup as suggested here
  https://github.com/Mutagen-Modding/Synthesis/wiki/Versioning#recommended-setup

• Make sure you're not running prerelease versions unless there's something specific you're after.
  https://github.com/Mutagen-Modding/Synthesis/wiki/Versioning#using-prerelease-versions

• Try setting patcher to Match
  https://github.com/Mutagen-Modding/Synthesis/wiki/Versioning#match

If you're having issues after trying those, then post what Mutagen/Synthesis versions you're running your patchers with here. This can be found by clicking on the patcher that failed and seeing its detail pane, which lists the versions its using, along with other settings.

EDIT:
Actually, I think people (including yourself probably) are running into this today, as I pushed a new Mutagen version yesterday, without pushing a new Synthesis version to match. So setting things to use the latest of both was actually using a misaligned setup. Should work once I push that out as well. Sorry about that!

[DCDogWalks]

Thanks for the assist. I upgraded the patcher to 0.26 and set everything to match and we're back in business again.

Thanks a lot