Can't install Animation Nodes.

[OmarEmaraDev]

The following guide provides the installation instruction for installing Animation Nodes and the troubleshooting guide to troubleshoot your installation.

How to install Animation Nodes?

1. Disable then uninstall any version of Animation Nodes already installed.
2. Download a build of Animation Nodes from the Animation Nodes website.
3. Go to User Preferences -> Add-ons.
4. Press install and choose the build you downloaded.

Animation Nodes should now be installed and can be enabled. If you encounter any errors or unexpected behavior during the installation process, read the troubleshooting section below.

Troubleshooting

If an installation error occurred, Animation Nodes should show an error message with a description of the issue that occurred. Below, we present a number of issues the could occur and the procedure to fix them.

Can't find Animation Nodes in the add-ons list

The installed Animation Nodes build is corrupted. First delete the animation_nodes folder from the add-ons directories. See Appendix I. Then follow the installation instructions above.

There are multiple versions of Animation Nodes installed

Multiple version of Animation Nodes can't coexist. To fix this, remove all versions of Animation Nodes. You may need to manually remove the animation_nodes folder from the add-ons directories. See Appendix I. Then follow the installation instructions above.

Import Error: DLL load failed

Install vc_redist.x64 from microsoft's support center.

libpython3.x : Can't Open Shared Object File

Animation Nodes needs the python dynamic library in order to work. Install python3.x or/and libpython3.x from your package manager of choice.

Ubuntu

Ubuntu users may install libpython3.x from the deadsnakes PPA using the following commands. (Making sure to replace x with the target version.)

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt update -y && sudo apt upgrade
sudo apt install libpython3.x

This build does not work at the moment

This could be caused due to a number of issue:

• The build you are using was not built for the platform you are using. Download and install an appropriate build as described above.
• You don't have the vc_redist.x64 library. See the section about "Import Error: DLL load failed" above.
• You don't have the python shared libraries. See the section about "libpython3.x : Can't Open Shared Object File" above.

Animation Nodes depends on Numpy

Animation Nodes needs the numpy python module to operate. Install numpy to your python environment through your package manager or through other means. Official Blender builds have numpy installed by default, so you may also use the latest official Blender build to avoid the issue.

Animation Nodes needs at least Blender 2.80

The latest version of Animation Nodes only works with Blender 2.80. Install a newer Blender build.

Animation Nodes is built for another OS

An Animation Nodes build is built for a certain platform and will only work on this platform. Download an Animation Nodes build that is built for your platform.

There is a python version mismatch

An Animation Nodes build is built for a certain python version and will only work on this python version. The official Animation Nodes builds provided are built against the python version used by the official Blender builds. If your Blender build uses a different version, you will have to use a custom Animation Nodes build or build Animation Nodes yourself. Notice that Animation Nodes exists in the AUR for Arch users.

This is just the source code of Animation Nodes

The installed Animation Nodes build is corrupted. First delete the animation_nodes folder from the add-ons directories. See Appendix I. Then follow the installation instructions above.

Still can't install Animation Nodes

If you still can't install Animation Nodes, add a comment to this issue detailing the issue you are having and we will help you resolve your issue.

Appendix I

It is sometimes necessary to delete Animation Nodes from the file system yourself by deleting the animation_nodes folder in the add-ons directories. There are many directories in which add-ons can be installed, you have to go through all of them and remove the animation_nodes folder. The directories at listed in the Blender documentation.

[OmarEmaraDev]

@3DSinghVFX If you have the time, we need to debug the daily builds and see why they are not working with Ubuntu. Can you provide any information on the issue? Did the daily builds ever work on ubuntu?

[3DSinghVFX]

Sure :) I do not remember the exact date but this problem has been happening for the end of October. Tomorrow, I'll try to install AN from the daily build on the different Blender versions 2.80 to 2.8x and report back about this issue.

[3DSinghVFX]

@OmarEmaraDev

1. When I try to install AN from the daily build then it gave this error during enabling in the addon menu,
   

2. Next, I replaced the test_compile.cpython-37m-x86_64-linux-gnu.so with the file from the compiled build AN on my pc. Then it gave this error,
   

3. If I replaced the compiled files in the algorithms/hashing/ with the files from the compiled build AN on my pc, then it gave this error in the file in another folder,
   

It looks like there is missing python lib (libpython3.7m.so.1.0) in the online AN daily build.

[OmarEmaraDev]

Can you try installing the libpython3.7 package then? Looking at an installation of Ubuntu 19.04, I can see the following files:

What is the default system python in Ubuntu 19.04?

[3DSinghVFX]

@OmarEmaraDev I have installed python3.7 (which that libpython3.7) then daily online build of AN worked without any error.

But I do not understand this problem. Does the daily online build of AN's lib path set to /usr/lib and the AN compiled on my pc with anaconda has lib path to lib-directory of the anaconda?

[OmarEmaraDev]

@3DSinghVFX Is libpython3.7 a dependency of python3.7? Also, is python3.7 readily available from the official Ubuntu repository?

I don't fully understand the issue as well, but maybe the linker added the directory to the rpath of the library.

[3DSinghVFX]

Yes, libpython3.7 comes with python3.7. I do not know, maybe the latest version (18.04 or higher) of Ubuntu comes with python3.7 or python3.8.

[OmarEmaraDev]

Ok. Thanks for helping with this! We will add that to the installation guide until we figure out a way to statically link Animation Nodes.

[3DSinghVFX]

Okay.

[enzyme69]

Trying to update Animation Nodes from master zip, remove the old, bring the new, and after installing the module, cannot see it under addon list. What's wrong with Animation Nodes add-on installation, it seems problematic :(

I have Blender 2.81 and 2.82 alpha in separate folder. Trying to make this latest version running on Blender 2.82 alpha.