Can't create c++ project

Development Programming & Scripting C++
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1

An error occurred while trying to generate project files.

Running E:/Epic Games/Unreal Engine/UE_4.26/Engine/Binaries/DotNET/UnrealBuildTool.exe  -projectfiles -project="D:/OneDrive/AllMyProjects/UnrealEngine/MyGame/MyGame.uproject" -game -rocket -progress
Discovering modules, targets and source code for project...
While compiling E:\Epic Games\Unreal Engine\UE_4.26\Engine\Intermediate\Build\BuildRules\UE4Rules.dll:
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaLogin\Source\XsollaLogin\XsollaLogin.Build.cs(7,14) : error CS0101: The namespace '' already contains a definition for 'XsollaLogin'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaLogin\Source\XsollaUtils\XsollaUtils.build.cs(5,18) : error CS0101: The namespace 'UnrealBuildTool.Rules' already contains a definition for 'XsollaUtils'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaLogin\Source\XsollaWebBrowser\XsollaWebBrowser.build.cs(6,18) : error CS0101: The namespace 'UnrealBuildTool.Rules' already contains a definition for 'XsollaWebBrowser'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaStore\Source\XsollaInventory\XsollaInventory.Build.cs(6,14) : error CS0101: The namespace '' already contains a definition for 'XsollaInventory'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaStore\Source\XsollaLogin\XsollaLogin.Build.cs(7,14) : error CS0101: The namespace '' already contains a definition for 'XsollaLogin'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaStore\Source\XsollaUtils\XsollaUtils.build.cs(5,18) : error CS0101: The namespace 'UnrealBuildTool.Rules' already contains a definition for 'XsollaUtils'
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaStore\Source\XsollaWebBrowser\XsollaWebBrowser.build.cs(6,18) : error CS0101: The namespace 'UnrealBuildTool.Rules' already contains a definition for 'XsollaWebBrowser'
ERROR: Unable to compile source files.

In what problem could be?

2

Actually, the answer was in question.
e:\Epic Games\Unreal Engine\UE_4.26\Engine\Plugins\Marketplace\XsollaLogin\Source\XsollaLogin\XsollaLogin.Build.cs(7,14) : error CS0101: The namespace ‘’ already contains a definition for ‘XsollaLogin’
The problem was in Xsolla plugins. Just removing these, unused for me, plugins resolved my problem.