# Visual Studio Filter Issues "Cmake Rules"
**URL:** https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566
**Category:** Usage
**Tags:** gen:vs
**Created:** [July 15, 2020, 9:20pm UTC](https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566 "2020-07-15T21:20:16Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@YMba9g8j9CJp0wLoQf5y](https://discourse.cmake.org/u/YMba9g8j9CJp0wLoQf5y)
#### Post date: [July 15, 2020, 9:20pm UTC](https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566/1 "2020-07-15T21:20:16Z")
Why is this filter CMake Rules being created when I create a Visual Studio project?
I don’t know what is causing it.
Any ideas would be appreciated.
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [November 11, 2020, 5:16pm UTC](https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566/2 "2020-11-11T17:16:28Z")
It appears to be created to store all of the `.rule` output targets. These are usually associated with custom commands or custom targets. I suppose it could be empty if you don’t have any of those in a project.
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### Author:  [@YMba9g8j9CJp0wLoQf5y](https://discourse.cmake.org/u/YMba9g8j9CJp0wLoQf5y)
#### Post date: [November 11, 2020, 5:24pm UTC](https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566/3 "2020-11-11T17:24:47Z")
I’ll try and create a minimal cmake project that highlights this issue.
I cannot share the code since it’s confidential.
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### Author:  [@YMba9g8j9CJp0wLoQf5y](https://discourse.cmake.org/u/YMba9g8j9CJp0wLoQf5y)
#### Post date: [November 11, 2020, 5:26pm UTC](https://discourse.cmake.org/t/visual-studio-filter-issues-cmake-rules/1566/4 "2020-11-11T17:26:06Z")
You are correct though I believe all this relates to custom targets/commands. I’ll get to it this week once I have the time.