# Unable to build Slicer: stopped by CTK with error MSB8066
**URL:** https://discourse.slicer.org/t/unable-to-build-slicer-stopped-by-ctk-with-error-msb8066/34969
**Category:** Development
**Tags:** build
**Created:** [March 19, 2024, 8:31am UTC](https://discourse.slicer.org/t/unable-to-build-slicer-stopped-by-ctk-with-error-msb8066/34969 "2024-03-19T08:31:48Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@RolandLau](https://discourse.slicer.org/u/RolandLau)
#### Post date: [March 19, 2024, 8:31am UTC](https://discourse.slicer.org/t/unable-to-build-slicer-stopped-by-ctk-with-error-msb8066/34969/1 "2024-03-19T08:31:48Z")
Hi,everyone.
I followed instruction at
https://slicer.readthedocs.io/en/latest/developer\_guide/build\_instructions/windows.html
trying to build slicer,but build stopped with error MSB8066.
Slicer source: latest main
OS: Windows 10
Visual Studio:MSVC v143
Qt version: 5.15.2
cmake:3.28.3-windows-x86\_64
last few build log:
```auto
正在创建库 E:/D/SD/CTK-build/CTK-build/bin/Debug/CTKWidgetsPlugins.lib 和对象 E:/D/SD/CTK-build/CTK-build/bin/Debug/CTKWidgetsPlugins.exp
CTKWidgetsPlugins.vcxproj -> E:\D\SD\CTK-build\CTK-build\bin\designer\Debug\CTKWidgetsPlugins.dll
PythonQt Wrapping - Generating generated_cpp/org_commontk_CTKWidgets/org_commontk_CTKWidgets_init.cpp
Generating moc_ctkWidgetsPythonQtDecorators.cpp
Building Custom Rule E:/D/SD/CTK/Libs/Widgets/CMakeLists.txt
Generating generated_cpp/org_commontk_CTKWidgets/moc_org_commontk_CTKWidgets.cpp
org_commontk_CTKWidgets_init.cpp
org_commontk_CTKWidgets_module_init.cpp
moc_org_commontk_CTKWidgets.cpp
moc_ctkWidgetsPythonQtDecorators.cpp
正在生成代码...
正在创建库 E:/D/SD/CTK-build/CTK-build/bin/Debug/CTKWidgetsPythonQt.lib 和对象 E:/D/SD/CTK-build/CTK-build/bin/Debug/CTKWidgetsPythonQt.exp
CTKWidgetsPythonQt.vcxproj -> E:\D\SD\CTK-build\CTK-build\bin\Debug\CTKWidgetsPythonQt.pyd
Copying python Script: ctk/ __init__.py
Copying python Script: qt/ __init__.py
Building Custom Rule E:/D/SD/CTK/Libs/Scripting/Python/Core/Python/CMakeLists.txt
Compiling python scripts: CTKScriptingPythonCore
Compiling E:/D/SD/CTK-build/CTK-build/bin/Python/qt/ __init__.py ...
Compiling E:/D/SD/CTK-build/CTK-build/bin/Python/ctk/ __init__.py ...
Building Custom Rule E:/D/SD/CTK/Libs/Scripting/Python/Core/Python/CMakeLists.txt
E:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(254,5): error MSB8066: “E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-mkdir.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-download.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-update.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-patch.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-configure.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-build.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-forceconfigure.rule;E:\D\SD\CTK-build\CMakeFiles\a753c7d83d533641ac03f7e3b7b6df0b\CTK-install.rule;E:\D\SD\CTK-build\CMakeFiles\1a8ae1f8c74cff30ec9935fb0b0cdc16\CTK-complete.rule;E:\D\SD\CTK-build\CMakeFiles\a008fdd1d6aeb806b61be6a68242b515\CTK.rule;E:\D\SD\CTK\CMakeLists.txt”的自定义生成已退出，代码为 1。 [E:\D\SD\CTK-build\CTK.vcxproj] [E:\D\SD\CTK.vcxproj]
E:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.CppCommon.targets(254,5): error MSB8066: “E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-mkdir.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-download.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-update.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-patch.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-configure.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-build.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-generate_project_description.rule;E:\D\SD\CMakeFiles\6d7b3d399a4c32175de194ffde57ab2a\CTK-install.rule;E:\D\SD\CMakeFiles\fb05fce5132104d50a122db3bca492b3\CTK-complete.rule;E:\D\SD\CMakeFiles\5be8eeaac1dcb45c85fd3d72b33c0314\CTK.rule;E:\D\S\CMakeLists.txt”的自定义生成已退出，代码为 1。 [E:\D\SD\CTK.vcxproj]
```
Any suggestions? Thanks.
---
### Author:  [@RolandLau](https://discourse.slicer.org/u/RolandLau)
#### Post date: [March 24, 2024, 1:29pm UTC](https://discourse.slicer.org/t/unable-to-build-slicer-stopped-by-ctk-with-error-msb8066/34969/2 "2024-03-24T13:29:27Z")
After days of research,I finally found the problem is bad network…