How did I fix «Unable to load MEF components» for SourceTree in Windows 10?

Windows
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2

I deleted %LOCALAPPDATA%\Atlassian\SourceTree.exe_Url_<random_string>\<SourceTree version>\Composition.cache

community.atlassian.com/t5/Sourcetree-questions/Re-Sourcetree-won-t-load/qaq-p/2388854/comment-id/43330#M43330