# FetchContent with poco
**URL:** https://discourse.cmake.org/t/fetchcontent-with-poco/6659
**Category:** Usage
**Created:** [October 13, 2022, 1:17pm UTC](https://discourse.cmake.org/t/fetchcontent-with-poco/6659 "2022-10-13T13:17:39Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@sampsont](https://discourse.cmake.org/u/sampsont)
#### Post date: [October 13, 2022, 1:17pm UTC](https://discourse.cmake.org/t/fetchcontent-with-poco/6659/1 "2022-10-13T13:17:39Z")
I’m trying to use FetchContent to use poco library. It complains about the version tag.
> include(FetchContent)
> FetchContent\_Declare(
> poco
> GIT\_REPOSITORY [GitHub - pocoproject/poco: The POCO C++ Libraries are powerful cross-platform C++ libraries for building network- and internet-based applications that run on desktop, server, mobile, IoT, and embedded systems.](https://github.com/pocoproject/poco.git)
> GIT\_TAG “Release 1.12.2”
> )
> FetchContent\_MakeAvailable(poco)
I get the following error: (I also tried GIT\_TAG “1.12.2” with same results)
> [cmake] [0/8] Performing download step (git clone) for ‘poco-populate’
> [cmake] Cloning into ‘poco-src’…
> [cmake] fatal: invalid reference: Release 1.12.2
> [cmake] CMake Error at poco-subbuild/poco-populate-prefix/tmp/poco-populate-gitclone.cmake:49 (message):
> [cmake] Failed to checkout tag: ‘Release 1.12.2’
---
### Author:  [@Angew](https://discourse.cmake.org/u/Angew)
#### Post date: [October 13, 2022, 1:29pm UTC](https://discourse.cmake.org/t/fetchcontent-with-poco/6659/2 "2022-10-13T13:29:42Z")
If you look into the poco repo on github, you will see it has tags like this: `poco-1.12.2-release`. Try that.
---
### Author:  [@sampsont](https://discourse.cmake.org/u/sampsont)
#### Post date: [October 13, 2022, 5:25pm UTC](https://discourse.cmake.org/t/fetchcontent-with-poco/6659/3 "2022-10-13T17:25:42Z")
Perfect! Now I know where to look.
Thanks!