TFS fail to build with "sqlite3\db.lock' because it is being used by another process"

Question

We have switched from the old xaml-build definitions to the new build definitions in TFS 2017. When we try to build the project it fails with the following error:

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Starting: Build
******************************************************************************
Current agent version: '2.117.2'
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Starting: Initialize Job
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Prepare build directory.
One or more errors occurred. (One or more errors occurred. (The process cannot access the file 'E:\agent builds\agent1\1\s\Server\.vs\Server\v15\Server\sqlite3\db.lock' because it is being used by another process.)) (The process cannot access the file 'E:\agent builds\agent1\1\s\Server\.vs\Server\v15\Server\sqlite3\db.lock' because it is being used by another process.)
******************************************************************************
Finishing: Initialize Job
******************************************************************************
******************************************************************************
Finishing: Build
******************************************************************************

Why is it locking an sqlite database when building? What can be configured wrong to cause this?

Answer 1

我发现我们的一位开发人员最近在TFS服务器上的Visual Studio 2017中手动构建了该项目，即使VS已关闭，文件似乎也被它锁定了。重新启动TFS服务器即可解决此问题。

Answer 2

请确保您没有检入不需要的文件和文件夹（例如bin，obj和.vs文件夹）。为了排除此类情况，如果使用TFVC，则可能需要使用.tfignore文件；如果使用git，则可能需要使用.gitignore文件。

Answer 3

.vs和其中的文件不应签入TFS。