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DLL Load Failed (Open cv2)

i tried many solutions for that error but didn't solved
ImportError: DLL load failed while importing cv2: The specified module could not be found.

Make sure you have installed right versions. Follow the below link for the compatible versions installed.
https://www.tensorflow.org/install/source_windows#gpu
https://www.drdataking.com/post/install-gpu-support-to-tensoflow-on-windows/
I was too getting similar issue:
DLL load failed while importing _multiarray_umath: The specified module could not be foundDLL load failed while importing _multiarray_umath: The specified module could not be found
Solution was the environment variable path was not set properly. Please find the image below:
Solution

in python 3.8 i fixed a similar error when compiling with cxfreeze cv2 dll load failed ,
the problem was that i had another version of python 3.6 installed and although environment variable path from python 3.8 was first, cxfreeze still loaded opencv from python 3.6 causing the error in the output file,
I fixed it by moving python 3.6 to another location so not get detected by cxfreeze, be careful with the environments variable path if you have other versions of python installed when compiling.
try miniconda with Python 3.6 is more stable ,
https://repo.continuum.io/miniconda/
Miniconda3-4.5.4 was the last Python 3.6 miniconda package.
Try to Install other versión of opencv
pip install opencv-contrib-python
Install Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads
Install media feature pack only if you use win10
https://www.microsoft.com/en-us/software-download/mediafeaturepack
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DLL load failed error when importing cv2

Import ldap in python gives gives "DLL load failed" error

I'm using the "import ldap" in a python code. This is on a windows 10 machine.
I installed the python-ldap module
pip3 install python-ldap
Installed the dependencies based on the instructions at Python Can't install packages
Also resolved all the pip deployment issues based on Installing python-ldap in a virtualenv on Windows
I'm now getting the following error when executing the import ldap statement. am I missing something here? Any ideas to resolve it?
thon39\site-packages\ldap\__init__.py", line 34, in <module>
import _ldap
ImportError: DLL load failed while importing _ldap: The specified module could not be found.

Visit the unofficial Python binaries page:
https://www.lfd.uci.edu/~gohlke/pythonlibs/#python-ldap
Download the appropriate WHL package for your system.
For example, if you're using Python 3.8 on an x64 system, download python_ldap‑3.3.1‑cp38‑cp38‑win_amd64.whl
(hint: do NOT download the +sasl version unless you have the Cyrus SASL code running on your system...)
Start the VirtualEnv for your project, if you're using one (C:\Users\youruser\.virtualenv\YourVirtualEnv\Scripts\activate.bat) -- if you're not, skip this step.
Then run pip3 install C:\Path\To\python_ldap_x.x.x-cpXX-cpXX-winXX.whl and this should install the Python DLL (pyd) file for you.

Trying to use igraph on Windows, but python can't load cairo

I've been trying to use igraph in python for network analysis, but whenever I try to import igraph I get the following error:
OSError: no library called "cairo" was found
cannot load library 'C:\Users\Nate\Anaconda3\libcairo-2.dll': error 0x7e
cannot load library 'libcairo.so.2': error 0x7e
cannot load library 'libcairo.2.dylib': error 0x7e
cannot load library 'libcairo-2.dll': error 0x7e
I followed the directions here:
How to install cairo on Windows
to install cairo through GTK, but I'm still getting this error message. I was able to get msys64 (https://www.gtk.org/docs/installations/windows/) working, and that seemed to install the one libcairo-2.dll and I copied it into my anaconda directory, but I couldn't find the other missing files. In the error message, you can see that anaconda recognizes the dll, but can't load it.
One step I was not able to follow from the linked instructions was cabal install gtk2hs-buildtools then cabal install gtk. I added the msys64 directory to my windows path, but the cabal command was not recognized in the msys64 or windows command lines.
Please help this newbie if you can!

Thanks Vincent Traag! That worked, and was much simpler than any of the methods I had previously seen!
For anyone finding this later execute this command in the Anaconda Powershell to install igraph for python:
conda install -c conda-forge python-igraph

Anaconda "import georaster" error: specified module not found

I am using Anaconda3 5.2.0 for Windows 10 64 bit, which is python 3.6.5 (Anaconda3-5.2.0-Windows-x86_64.exe). I have installed this into C:\Anaconda3 and then from the anaconda prompt installed basemap:
conda install -c conda-forge basemap
conda install -c conda-forge basemap-data-files
I have used this to start building map files and everything is working fine. I then wanted to add a raster to the map using georaster.
conda install -c conda-forge georaster
This also installs gdal.
When I open Jupyter Notebook and enter the line
import georaster
I get the following error message:
ImportError: DLL load failed: The specified module could not be found.
I have tried various solutions that I have seen for related issues including installing a gdal update, fiona, and geopandas. None of these change the message.
I tried installing gdal using the binaries .whl file in conda, but despite following the advice (which said to use pip) I was not able to make it work.
pip install GDAL-2.2.4-cp37-cp37m-win_amd64.whl
resulted in an error message:
GDAL-2.2.4-cp37-cp37m-win_amd64.whl is not a supported wheel on this platform.
Finally I went looking to see if I could locate the missing DLL manually. I saw one user suggest libtiff.dll was the missing file, and indeed it was one I did not have. I downloaded it and copied it into the System32 and SysWOW64 folders. This still resulted in an error but changed the error message:
ImportError: DLL load failed: %1 is not a valid Win32 application.
However I could not find a way to stop the error from occurring. I followed the steps to register the .dll but that also had an error message from not found to not supported:
(cmd prompt in administrator mode)
regsvr32.exe /i libtiff.dll
The module "libtiff.dll" failed to load.
Make sure the binary is stored at the specified path or debug it to check for problems with the binary or dependent .DLL files.
The specified module could not be found.
I have tried downloading from 2 other websites, neither with any success. It is feeling like every method I attempt now just hits some weird error that nobody else is seeming to have and I don't understand why.
If anyone could offer some advice I'd be very appreciative. Thank you in advance.

downloading the required *.whl file(GDAL-2.2.4-cp36-cp36m-win_amd64.whl) from https://www.lfd.uci.edu/~gohlke/pythonlibs/#gdal and then copying it to a location like C:\GDAL-2.2.4-cp36-cp36m-win_amd64.whl
then pip install c:\GDAL-2.2.4-cp36-cp36m-win_amd64.whl
worked for me.
Thanks.

Scipy: C Callback DLL failing to Load

I have been attempting to install scipy such that I can run it from IDLE. I have installed :
the proper numpy wheel via pip
the proper scipy wheel via pip
the visual C++ redistributable
I am using python 3.6.xx 32 bit and windows 10 pro. I have uninstalled and reinstalled everything multiple times. I am unsure how to move forward or where to look, it seems to me that the low level callable library has not installed properly given I am getting the error "Import Error: DLL load failed: the specified module could not be found"