# CTK and SLICER Warnings while building SlicerCustomApp Templete, then after it its creating error after modification

**URL:** <https://discourse.slicer.org/t/ctk-and-slicer-warnings-while-building-slicercustomapp-templete-then-after-it-its-creating-error-after-modification/20130>\
**Category:** Development\
**Tags:** build, segmentation, extensions-manager, nightlybuild, installation\
**Created:** [October 13, 2021, 9:28am UTC](https://discourse.slicer.org/t/ctk-and-slicer-warnings-while-building-slicercustomapp-templete-then-after-it-its-creating-error-after-modification/20130 "2021-10-13T09:28:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Dwij\_Mistry](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dwij_mistry/32/15265_2.png) [@Dwij\_Mistry](https://discourse.slicer.org/u/Dwij_Mistry)\
**Post date:** [October 13, 2021, 9:28am UTC](https://discourse.slicer.org/t/ctk-and-slicer-warnings-while-building-slicercustomapp-templete-then-after-it-its-creating-error-after-modification/20130/1 "2021-10-13T09:28:36Z")

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Hello Developer,

I am getting CTK and SLICER warnings while BUILD\_ALL in custom slicer build process.  
I have installed following software as mentioned in the [https://slicer.readthedocs.io/en/latest/developer\_guide/build\_instructions/windows.html#](https://slicer.readthedocs.io/en/latest/developer_guide/build_instructions/windows.html#)

WINDOWS 10 OS  
CMAKE : version=3.18.2  
GIT : version=2.33.0  
NSIS : version=3.08  
QT : version=5.15.0  
VISUAL STUDIO : version = 2019 community edition

 ![warnings_13102021](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/8/08c62d6856cf82d2f22c0006c2689e5d9ed441e4.png)

 ![ERROR_1](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/4/f4a211618ed57d7ce36ff410fe6dd99d726b4de6.png)

I am very new to this please kindly help me out.

[BUILD LOG FILE](https://drive.google.com/file/d/1AQr49u0mYMe7wInkR4GSixLooFeXO5-S/view?usp=sharing)

[BUILD WARNING LOG FILE](https://drive.google.com/file/d/1dWZSXAYlxWUqCzf4kcgQdNo1YPHC-AMO/view?usp=sharing)