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nerfstudio/docs/quickstart/installation.md
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evonneng 5e56e7b229 update quickstart + readme (#641)
* updated quickstart and readme

* damn ctrl c on macs
2022-10-03 22:38:43 -07:00

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# Installation
## Create environment
We recommend using conda to manage dependencies. Make sure to install [Conda](https://docs.conda.io/en/latest/miniconda.html) before preceding.
```bash
conda create --name nerfstudio -y python=3.8.13
conda activate nerfstudio
python -m pip install --upgrade pip
```
## Dependencies
Install pytorch with CUDA (this repo has been tested with CUDA 11.3) and [tiny-cuda-nn](https://github.com/NVlabs/tiny-cuda-nn)
```bash
pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 -f https://download.pytorch.org/whl/torch_stable.html
pip install git+https://github.com/NVlabs/tiny-cuda-nn/#subdirectory=bindings/torch
```
## Installing nerfstudio
Pip package:
```bash
pip install nerfstudio
```
If you want the latest and greatest:
```bash
git clone git@github.com:plenoptix/nerfstudio.git
cd nerfstudio
pip install -e .
```
### Optional
#### Tab completion (bash & zsh)
This needs to be rerun when the CLI changes, for example if nerfstudio is updated.
```bash
ns-install-cli
```
### Development packages
```bash
pip install -e.[dev]
pip install -e.[docs]
```
## Installation FAQ
- [TinyCUDA installation errors out with cuda mismatch](tiny-cuda-error)
- [Installation errors, File "setup.py" not found](pip-install-error)
- [Runtime errors, "len(sources) > 0".](cuda-sources-error)
(tiny-cuda-error)=
#### TinyCUDA installation errors out with cuda mismatch
While installing tiny-cuda, you run into: `The detected CUDA version mismatches the version that was used to compile PyTorch (10.2). Please make sure to use the same CUDA versions.`
**Solution**:
```
pip install torch==1.12.1+cu113 torchvision==0.13.1+cu113 -f https://download.pytorch.org/whl/torch_stable.html
```
(pip-install-error)=
#### Installation errors, File "setup.py" not found
When installing dependencies and nerfstudio with `pip install -e .`, you run into: `ERROR: File "setup.py" not found. Directory cannot be installed in editable mode`
**Solution**:
This can be fixed by upgrading pip to the latest version:
```
python -m pip install --upgrade pip
```
(cuda-sources-error)=
#### Runtime errors: "len(sources) > 0", "ctype = \_C.ContractionType(type.value) ; TypeError: 'NoneType' object is not callable".
When running `train.py `, an error occurs when installing cuda files in the backend code.
**Solution**:
This is a problem with not being able to detect the correct CUDA version, and can be fixed by updating the CUDA path environment variables:
```
export CUDA_HOME=/usr/local/cuda
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64
export PATH=$PATH:$CUDA_HOME/bin
```