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[Trouble Shooting] Human Fall Flat Workshop in Unity


2021-01-02 Game TroubleShooting Unity

An error “ArgumentException: Input Axis Joystick Look Horizontal is not setup.” occurred when Play button clicked.

Some people have the similar problem as I have.
ArgumentException: Input Axis Joystick Look Horizontal is not setup.
Error: Input Axis Not Set Up

It’s easy to solve. Put “<SteamLibrary>\steamapps\common\Human Fall Flat\WorkshopPackage\ProjectSettings” into <UnityProjects>\<Project directory>.

The following is the detail of this problem.

Problem

I followed the guide to start creating workshop of Human Fall Flat in Unity. When I start “Play” mode, I couldn’t control the Human and he was twisted!!

The following is the detail of the error.

ArgumentException: Input Axis Joystick Look Horizontal is not setup.
 To change the input settings use: Edit -> Project Settings -> Input
HumanControls.get_calc_joyLook ()
HumanControls.ReadInput (System.Single& walkForward, System.Single& walkRight, System.Single& cameraPitch, System.Single& cameraYaw, System.Single& leftExtend, System.Single& rightExtend, System.Boolean& jump, System.Boolean& playDead, System.Boolean& shooting)
Multiplayer.NetPlayer.PreFixedUpdate ()
Multiplayer.NetGame.PreFixedUpdate ()
Multiplayer.NetGamePre.FixedUpdate ()

Cause

“Input Axis <NAME> is not setup.” means that the input axis named “NAME” is not defined in Input Manager. Click “Edit” > “Project Settings” > “Input” and check the list of input axis. There is no axis named “Joystick Look Horizontal”.

The project settings, including the “Input Axis”, are defined in the “ProjectSettings” directory in steamapps. Therefore, you need to place this ProjectSettings directory in your own project directory. In my case, I placed a wrong one.

Solution

Close unity project. And put the “ProjectSettings” into the project directory.

Result

You can control the character with no error.

Error “Docker.ApiServices.WSL2.WslKernelUpdateNotInstalledException”


2020-12-31 Tools TroubleShooting

This is a trouble shooting log.

Problem

I downloaded the installer of Docker-Desktop from download page here. And executed the installer and start Docker. Then the error was displayed after starting Docker-Desktop.

Cause

Let’s see the window behind the exception window by Microsoft .NET Framework.

The WSL 2 Linux kernel is now installed using a separate MSI update package.
Please click the link and follow the instructions to install the kernel update:
http://aka.ms/wsl2kernel.

Press Restart after installing the Linux kernel.

That’s the cause of the error. We should install “WSL 2” by ourselves now.

Solution

Install WSL 2 Linux kernel whose installer is in http://aka.ms/wsl2kernel.

from wsl_update_x64.msi

After installing WSL 2, restart the Docker-Desktop.

The window displayed when started successfully

[Trouble Shooting] Cannot Use Library In Jupyter Notebook


2020-12-29 Python TroubleShooting

Environment

Python 3.8.4
pip 20.1.1

Problem

I installed “matblotlib” by using pip3 command on the terminal as below. I can import matplotlib on the terminal.

% pip3 install matplotlib 
% python3
Python 3.8.4 (default, Jul 14 2020, 02:58:48) 
[Clang 11.0.3 (clang-1103.0.32.62)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>>

In jupyter notebook,

import matplotlib
---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-3-0484cd13f94d> in <module>
----> 1 import matplotlib

ModuleNotFoundError: No module named 'matplotlib'

Check the situation

The reference path for jupyter notebook might differ from the one of host python3.

Jupyter notebook refers the python 3.8 in jupyterlab/2.2.0/libexec/lib

import sys
print(sys.version)
print(sys.path)

3.8.4 (default, Jul 14 2020, 02:58:48) 
[Clang 11.0.3 (clang-1103.0.32.62)]
['/usr/local/Cellar/jupyterlab/2.2.0/libexec/lib/python38.zip', '/usr/local/Cellar/jupyterlab/2.2.0/libexec/lib/python3.8', '/usr/local/Cellar/jupyterlab/2.2.0/libexec/lib/python3.8/lib-dynload', '/usr/local/opt/python@3.8/Frameworks/Python.framework/Versions/3.8/lib/python3.8', '', '/usr/local/Cellar/jupyterlab/2.2.0/libexec/lib/python3.8/site-packages', '/usr/local/Cellar/jupyterlab/2.2.0/libexec/lib/python3.8/site-packages/IPython/extensions', '/Users/<username>/.ipython']

On terminal, Python3 is in /usr/local/Cellar.

>>> import sys
>>> print(sys.version)
>>> print(sys.path)

3.8.4 (default, Jul 14 2020, 02:58:48) 
[Clang 11.0.3 (clang-1103.0.32.62)]

['', '/usr/local/Cellar/python@3.8/3.8.4/Frameworks/Python.framework/Versions/3.8/lib/python38.zip', '/usr/local/Cellar/python@3.8/3.8.4/Frameworks/Python.framework/Versions/3.8/lib/python3.8', '/usr/local/Cellar/python@3.8/3.8.4/Frameworks/Python.framework/Versions/3.8/lib/python3.8/lib-dynload', '/usr/local/lib/python3.8/site-packages']

Cause

In my case, the problem caused by homebrew. Installation of Jupyter Lab or Jupyter Notebook with brew command caused the different reference to python3 as above.

We can check the list of installed items with the following command on the terminal.

% brew list
autoconf	ipython		openssl@1.1	python@3.8	xz
flake8		jupyterlab	pandoc		readline	zeromq
gdbm		libyaml		perl		ruby
gettext		lua		pkg-config	sqlite
icu4c		node		pyenv		vim

Solution

My solutions is to uninstall jupyterlab with brew command and install it again with pip3.

% brew uninstall jupyterlab
Uninstalling /usr/local/Cellar/jupyterlab/2.2.0... (7,150 files, 106.8MB)

% python3 -m pip install jupyterlab
Collecting jupyterlab
  Downloading jupyterlab-3.1.7-py3-none-any.whl (8.5 MB)
     |████████████████████████████████| 8.5 MB 136 kB/s 
...

Start Jupyter Lab from the terminal.

% jupyter lab

I found another it could be a solution for similar problem to install ipykernel. Check ModuleNotFound Error for matplotlib for detail.

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