# Cmake compiler tool
**URL:** https://discourse.cmake.org/t/cmake-compiler-tool/2496
**Category:** Usage
**Created:** [January 8, 2021, 2:08pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496 "2021-01-08T14:08:22Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 8, 2021, 2:08pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/1 "2021-01-08T14:08:22Z")
I tried to confirm the cmake confirmation on iOS 11.1, but I get incomplete error because ((CMake Error at CMakeLists.txt:3 (project): The CMAKE\_CXX\_COMPILER:
```auto
/Library/Developer/CommandLineTools/usr/bin/c++
```
is not a full path to an existing compiler tool.
Tell CMake where to find the compiler by setting either the environment variable “CXX” or the CMake cache entry CMAKE\_CXX\_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.))
How can I solve it?
Best regards…
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [January 8, 2021, 2:23pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/2 "2021-01-08T14:23:24Z")
Do you have a space before `/Library` in your code or is that just an artifact on DIscourse?
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 8, 2021, 3:23pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/3 "2021-01-08T15:23:08Z")
it is just an artifact. I found a file with the name of cmake complier and CMake cach. When tried to put the path into the CMake in terminals. It ends up by deleting the 2 files??
Do I have to make a new files and locate the path into cmake terminal? and how can I do it??
Best regards…
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### Author:  [@McMartin](https://discourse.cmake.org/u/McMartin)
#### Post date: [January 8, 2021, 4:08pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/4 "2021-01-08T16:08:47Z")
Have you installed Xcode and started it once?
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 9, 2021, 8:41am UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/5 "2021-01-09T08:41:26Z")
yes, I install it and lunch it. what can I do next?
To be honest am a physician and I don’t have that much of experience in the terminals and cmake programs, I want to install the dicom2mesh and orthomesh to help my patient for planning their operations, it is not a business work.I am trying to help my patient with whatever I have, If anyone can help me through this I will be glad and thankful for him.
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 9, 2021, 9:01am UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/6 "2021-01-09T09:01:36Z")
When I Opened a new terminal and try to confirm the cmake to open the cmake window, I get this message
CMake Error: The source directory “/Users” does not appear to contain
CMakeLists.txt.
Specify --help for usage, or press the help button on the CMake GUI.
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [January 11, 2021, 2:30pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/7 "2021-01-11T14:30:38Z")
> [@Khalid\_Al-kuwity](#):
>
> When I Opened a new terminal and try to confirm the cmake to open the cmake window, I get this message
It seems that you’ve given `/Users` as your source directory for CMake to try and build? What command did you run?
> [@Khalid\_Al-kuwity](#):
>
> yes, I install it and lunch it. what can I do next?
The compiler should now be set up properly. Xcode does some post-install steps that it needs to work from the command line only after it is first run.
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 12, 2021, 1:34pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/8 "2021-01-12T13:34:30Z")
Now I am facing these difficulties, I don’t have much of experience in terminal. I don’t know what to do with these
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 12, 2021, 1:35pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/9 "2021-01-12T13:35:14Z")
I don’t have a cmake list or cash or complier files, What can I do with it?
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [January 12, 2021, 2:43pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/10 "2021-01-12T14:43:07Z")
You need to point CMake at the source directory that you want to build. [This section](https://cmake.org/cmake/help/latest/guide/tutorial/index.html#id6) is a decent place to start.
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### Author:  [@Khalid\_Al-kuwity](https://discourse.cmake.org/u/Khalid_Al-kuwity)
#### Post date: [January 13, 2021, 2:59pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/11 "2021-01-13T14:59:07Z")
When I try to solve the source directory and configuration. I got this
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [January 13, 2021, 4:10pm UTC](https://discourse.cmake.org/t/cmake-compiler-tool/2496/12 "2021-01-13T16:10:41Z")
This is a problem with the project in question (DicomToMesh?). This error should be reported to the developers of that project.