# troubles when complinig
**URL:** https://discourse.cmake.org/t/troubles-when-complinig/9467
**Category:** Development
**Created:** [November 20, 2023, 4:43am UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467 "2023-11-20T04:43:44Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 4:43am UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/1 "2023-11-20T04:43:44Z")
```auto
+ mkdir -p qtbase
+ cd qtbase
+ exec /home/stuv/Qt/6.6.0/Src/qtbase/configure -top-level
'/usr/local/bin/cmake' '-DQT_INTERNAL_CALLED_FROM_CONFIGURE:BOOL=TRUE' '-G' 'Unix Makefiles' '/home/stuv/Qt/6.6.0/Src'
CMake Error: Error: generator : Unix Makefiles
Does not match the generator used previously: Ninja
Either remove the CMakeCache.txt file and CMakeFiles directory or choose a different binary directory.
CMake Error at qtbase/cmake/QtProcessConfigureArgs.cmake:1038 (message):
CMake exited with code 1.
```
i tried to delete the file and the folder and i get:
```auto
CMake Error: Error: generator : Ninja
Does not match the generator used previously: Unix Makefiles
Either remove the CMakeCache.txt file and CMakeFiles directory or choose a different binary directory.
CMake Error at qtbase/cmake/QtSeparateDebugInfo.cmake:53 (try_compile):
Failed to configure test project build system.
Call Stack (most recent call first):
qtbase/cmake/QtSeparateDebugInfo.cmake:114 (qt_internal_try_compile_binary_for_strip)
qtbase/cmake/QtBuildInternals/QtBuildInternalsConfig.cmake:447 (qt_internal_generate_binary_strip_wrapper)
qtbase/CMakeLists.txt:127 (qt_build_repo_begin)
-- Configuring incomplete, errors occurred!
CMake Error at qtbase/cmake/QtProcessConfigureArgs.cmake:1038 (message):
CMake exited with code 1.
```
---
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 4:46am UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/2 "2023-11-20T04:46:10Z")
i tried a complete reintall of qt but same error
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [November 20, 2023, 12:37pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/3 "2023-11-20T12:37:03Z")
It looks like Qt is not considering an already-existing directory may spoil things. Can you please provide the full sequence of commands you used to get to this state? I suspect Qt should pass `--fresh` if CMake is 3.24 or newer and make noise otherwise if `CMakeFiles/` or `CMakeCache.txt` already exist in the build directory of interest.
Cc: @craig.scott @alcroito
---
### Author:  [@alcroito](https://discourse.cmake.org/u/alcroito)
#### Post date: [November 20, 2023, 1:10pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/4 "2023-11-20T13:10:55Z")
Qt’s configure allows reconfiguring in an existing build directory, so removing CMakeCache.txt and friends or complaining about it is not possible, because the intent might be to do a reconfiguration with slightly different options, rather than a clean configuration from scratch.
Qt’s configure accepts --fresh, so if the intent is to do a clean build, that can be explicitly passed.
I’m not sure how the OP ended up in their situation.
It also looks weird that they call cmake on the top-level source dir “Src” within a qtbase subdirectory.
Either they should call configure from “Src/qtbase/configure”, or call “Src/configure” but not within a qtbase build subdirectory.
---
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 1:46pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/5 "2023-11-20T13:46:51Z")
[https://paste.debian.net/1298679/](https://paste.debian.net/1298679/)
---
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 1:49pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/6 "2023-11-20T13:49:24Z")
cmake --fresh . let the configuration finish!
---
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 1:57pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/8 "2023-11-20T13:57:25Z")
but then cmake --build . gives me: [stuv@localhost:~/Qt/6.6.0/Src$ cmake --build .[1%] Generating pc file for ta - Pastebin.com](https://pastebin.com/uii9Jg7e)
---
### Author:  [@alcroito](https://discourse.cmake.org/u/alcroito)
#### Post date: [November 20, 2023, 2:04pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/9 "2023-11-20T14:04:15Z")
You’re trying to build Qt WebEngine and it fails due to a missing `cups-config` binary. You will either need to skip building WebEngine, or install all required dependencies.
Having said that, the CMake forum is not the right place to seek support for building Qt.
A more appropriate place would be the Qt forums at [https://forum.qt.io/](https://forum.qt.io/)
---
### Author:  [@bytecounter](https://discourse.cmake.org/u/bytecounter)
#### Post date: [November 20, 2023, 2:50pm UTC](https://discourse.cmake.org/t/troubles-when-complinig/9467/10 "2023-11-20T14:50:10Z")
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