i'm new to python anaconda. i decide to install opencv library to work on computer vision by this command :
conda install -c menpo opencv
but i face with this error :
## Package Plan ##
environment location: C:\ProgramData\Anaconda3
added / updated specs:
- opencv
The following packages will be downloaded:
package | build
---------------------------|-----------------
libopencv-3.4.2 | h20b85fd_0 37.4 MB
hdf5-1.8.20 | hac2f561_1 26.7 MB
opencv-3.4.2 | py36h40b0b35_0 10 KB
py-opencv-3.4.2 | py36hc319ecb_0 1.5 MB
------------------------------------------------------------
Total: 65.5 MB
The following NEW packages will be INSTALLED:
blas: 1.0-mkl
libopencv: 3.4.2-h20b85fd_0
opencv: 3.4.2-py36h40b0b35_0
py-opencv: 3.4.2-py36hc319ecb_0
The following packages will be UPDATED:
ca-certificates: 2017.08.26-h94faf87_0 --> 2018.03.07-0
certifi: 2018.1.18-py36_0 --> 2018.8.24-py36_1
numpy: 1.14.0-py36h4a99626_1 --> 1.14.2-py36h5c71026_0
openssl: 1.0.2n-h74b6da3_0 --> 1.0.2p-hfa6e2cd_0
The following packages will be DOWNGRADED:
hdf5: 1.10.1-h98b8871_1 --> 1.8.20-hac2f561_1
Proceed ([y]/n)?
Downloading and Extracting Packages
libopencv 3.4.2: ############################################################################################## | 100%
hdf5 1.8.20: ################################################################################################## | 100%
opencv 3.4.2: ################################################################################################# | 100%
py-opencv 3.4.2: ############################################################################################## | 100%
Preparing transaction: done
Verifying transaction: done
Executing transaction: failed
ERROR conda.core.link:_execute(481): An error occurred while uninstalling package 'defaults::numpy-1.14.0-py36h4a99626_1'.
PermissionError(13, 'Access is denied')
Attempting to roll back.
Rolling back transaction: done
PermissionError(13, 'Access is denied')
i'm running the command in Anaconda Prompt. is there any solution ? i tried many other installation command but above error shows up many times. my Python is 3.6 , i use conda info
command , and you can see the result below :
active environment : base
active env location : C:\ProgramData\Anaconda3
shell level : 1
user config file : C:\Users\Mohammad\.condarc
populated config files : C:\Users\Mohammad\.condarc
conda version : 4.4.10
conda-build version : 3.4.1
python version : 3.6.4.final.0
base environment : C:\ProgramData\Anaconda3 (read only)
channel URLs : https://repo.continuum.io/pkgs/main/win-64
https://repo.continuum.io/pkgs/main/noarch
https://repo.continuum.io/pkgs/free/win-64
https://repo.continuum.io/pkgs/free/noarch
https://repo.continuum.io/pkgs/r/win-64
https://repo.continuum.io/pkgs/r/noarch
https://repo.continuum.io/pkgs/pro/win-64
https://repo.continuum.io/pkgs/pro/noarch
https://repo.continuum.io/pkgs/msys2/win-64
https://repo.continuum.io/pkgs/msys2/noarch
package cache : C:\ProgramData\Anaconda3\pkgs
C:\Users\Mohammad\AppData\Local\conda\conda\pkgs
envs directories : C:\Users\Mohammad\AppData\Local\conda\conda\envs
C:\ProgramData\Anaconda3\envs
C:\Users\Mohammad\.conda\envs
platform : win-64
user-agent : conda/4.4.10 requests/2.18.4 CPython/3.6.4 Windows/10 Windows/10.0.10586
administrator : False
netrc file : None
offline mode : False
You are installing conda package into "read only" directory so the permission error occur.
You have 2 choice to overcome this problem
Grant yourself a administrator permission .
Install local package into different directory inwhich you have write permission
conda install -c menpo opencv -p YOUR_DIRECTORY
I myself prefer a 3rd choice
Create for yourself a new python virtual environment inside directory inwhich you have write permission and use it
$ conda create -n YOUR_ENV -p YOUR_DIRECTORY python=2.7
source activate YOUR_ENV
$ conda install opencv
Hope that help
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