Plugin compile fails. Always.

Development Pipeline & Plugins Plugins
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1

I can’t compile the plugin for the newer version. I create new c++ project, insert the new folder named plugins, put the plugin into the folder, generate the project files, recompile the solution and it always ends with success but then it wants to recompile the plugin binaries and it always fails. And this is the message log.

Running E:/Epic Games/4.13/Engine/Binaries/DotNET/UnrealBuildTool.exe MyProject3 Development Win64 -project=“F:/MyProject/MyProject3/MyProject3.uproject” -editorrecompile -progress -noubtmakefiles -NoHotReloadFromIDE
@progress push 5%
@progress pop
Target is up to date
LogModuleManager:Warning: Found module file F:/MyProject/MyProject3/Plugins/Animation/FullBodyIKPlugin/Binaries/Win64/UE4Editor-FullBodyIKPlugin.dll (API version 2992821), but it was incompatible with the current engine API version (3106830). This is likely a stale module that must be recompiled.
LogModuleManager:Warning: Found module file F:/MyProject/MyProject3/Plugins/Animation/FullBodyIKPlugin/Binaries/Win64/UE4Editor-FullBodyIKPluginEditor.dll (API version 2992821), but it was incompatible with the current engine API version (3106830). This is likely a stale module that must be recompiled.
LogInit:Warning: Still incompatible or missing module: UE4Editor-FullBodyIKPlugin.dll
LogInit:Warning: Still incompatible or missing module: UE4Editor-FullBodyIKPluginEditor.dll
LogExit: Preparing to exit.

2

Try and set the “unreal build tool.exe” too admin rights.
Re-install the engine.

Probably the answer:
The current API isnt compatible with that plugin according too the log, so the creator needs too update the plugin, if you cant do it yourself.(if you fix it yourself submit the code too the creator)