Microsoft.bcl.build.tasks.dll Is Used By Another Process [top] Info

This is the classic IT fix, but it must be done in a specific way to release file locks.

The root cause is almost always . To speed up compilation, Visual Studio keeps MSBuild processes alive in the background (node reuse). If one of these processes fails to release the microsoft.bcl.build.tasks.dll after a task finishes, the file stays "in use." Common triggers include: microsoft.bcl.build.tasks.dll is used by another process