### Author:  [@Sergey](https://discourse.numenta.org/u/Sergey)
#### Post date: [September 17, 2020, 9:03am UTC](https://discourse.numenta.org/t/cant-install-htm-core/7877/1 "2020-09-17T09:03:15Z")
Hi!
I reinstalled my Linux Mint. And I want to reinstall htm.core. I didn’t install my nupic. I look this instruction [https://github.com/htm-community/htm.core](https://github.com/htm-community/htm.core). And then I wrote python3.8 setup.py install. I didn’t use --uesr, because I use virtualenv. And I got next errors:
```
[79%] Linking CXX executable unit_tests
[79%] Built target unit_tests
Makefile:170: recipe for target 'all' failed
make: *** [all] Error 2
Traceback (most recent call last):
File "setup.py", line 374, in
getExtensionFiles(platform, build_type)
File "setup.py", line 239, in getExtensionFiles
generateExtensions(platform, build_type)
File "setup.py", line 286, in generateExtensions
subprocess.check_call(["cmake", "--build", ".", "--target", "install", "--config", build_type, "--", "-j", "4"])
File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--target', 'install', '--config', 'Release', '--', '-j', '4']' returned non-zero exit status 2.
```
Can you help me? @breznak@David_Keeney
Thanx a lot for your help.
---
### Author:  [@David\_Keeney](https://discourse.numenta.org/u/David_Keeney)
#### Post date: [September 17, 2020, 3:15pm UTC](https://discourse.numenta.org/t/cant-install-htm-core/7877/2 "2020-09-17T15:15:32Z")
This is a rather generic error message. But it does tell us that CMake is installed, you are using python3.8 and the error is someplace in the make.
I don’t have Mint but I will try this on Ubuntu and see if I can reproduce it.
What we need is to use `make VERBOSE=1` (without the -j4) in an attempt to get a more detailed error message or context.
---
### Author:  [@Sergey](https://discourse.numenta.org/u/Sergey)
#### Post date: [September 17, 2020, 7:56pm UTC](https://discourse.numenta.org/t/cant-install-htm-core/7877/3 "2020-09-17T19:56:31Z")
I try to write this code:
` python3.8 setup.py install VERBOSE=1`
And get same error.
```
[79%] Built target unit_tests
Makefile:170: recipe for target 'all' failed
make: *** [all] Error 2
Traceback (most recent call last):
File "setup.py", line 374, in
getExtensionFiles(platform, build_type)
File "setup.py", line 239, in getExtensionFiles
generateExtensions(platform, build_type)
File "setup.py", line 286, in generateExtensions
subprocess.check_call(["cmake", "--build", ".", "--target", "install", "--config", build_type, "--", "-j", "4"])
File "/usr/lib/python3.8/subprocess.py", line 364, in check_call
raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', '--build', '.', '--target', 'install', '--config', 'Release', '--', '-j', '4']' returned non-zero exit status 2.
```
---
### Author:  [@marty1885](https://discourse.numenta.org/u/marty1885)
#### Post date: [September 18, 2020, 3:46pm UTC](https://discourse.numenta.org/t/cant-install-htm-core/7877/4 "2020-09-18T15:46:07Z")
@David_Keeney I got the same error while trying to build HTM.core today from pip. I’ve posted a [bug report on GitHub](https://github.com/htm-community/htm.core/issues/890). @Sergey Feel free to comment here or on GitHub if you want to provided details about issues on your side. I hope my bug report covers your issue.
---
### Author:  [@David\_Keeney](https://discourse.numenta.org/u/David_Keeney)
#### Post date: [September 18, 2020, 4:43pm UTC](https://discourse.numenta.org/t/cant-install-htm-core/7877/5 "2020-09-18T16:43:16Z")
Thanks for posting an issue. I will followup there.
The install from pip only knows about Python 3.7 on a few specific platforms. Best to do a full build.
I think the issue may be that requirements.txt is not being ran successfully in setup.py during a full build from sources. Try:
` sudo pip3 install -r requirements.txt`
Then try the build again.