# Install from a local copy on Windows

Note

• It is strongly recommended to install the released version. Try it if other installation methods result in errors.

• Windows installation currently requires Visual C++ 2017 Build Tools.

• Training on GPU requires NVIDIA Driver of version 418.xx or higher.

To install the R package from a local copy of the CatBoost repository on Windows:

2. Open Git Bash and create a directory for the local copy of the CatBoost repository:

mkdir CatBoostRepository

3. Open the created directory.

4. (Optionally) Configure the proxy if required:

git config --global http.proxy http://login:password@ip_address:port_number

• login and password are the proxy credentials
• ip_address is the IP address of the proxy server
• port_number is the configured proxy port number
5. Clone the repository:

git clone https://github.com/catboost/catboost.git

6. Install Python and add it to PATH.

7. Install Visual Studio Community 2017.

• Choose the Windows Platform development and Desktop Development with C++ options in the workloads tab.
• Choose a suitable version of the MSVC compiler. The version of MSVC for CUDA Toolkit 9.0 and 9.1 should not be higher than 15.6 v14.11, while the version for CUDA Toolkit 9.2 should not be higher than 15.6 v14.13.

Note

Visual Studio forcibly installs the latest version of the compiler upon each update. The latest MSVC compiler may not be suitable for compiling CatBoost, especially with CUDA. It is advised to install VC++ 2017 version 15.6 v14.13 for CUDA Toolkit 9.2 and 15.6 v14.11 for CUDA Toolkit 9.0 and 9.1.

Identify the set version of the compiler
1. Open the properties window for any cpp file of the project.
2. Ensure the absence of the /nologo option in the compiler's command-line (for example, by adding the deprecated /nologo- option in the Command Line/Additional Options box).
3. Compile this source file (Ctrl + F7).

The set version of the compiler is printed to the Output window. CatBoost can not be compiled with 19.14.* versions.

Change the version of the compiler

Use one of the following methods to set the recommended version of the compiler:

• Enable the required version as described in the Visual C++ Team Blog.

• Run the environment setter from the command line with the vcvars_ver option (the path to the script depends on the installation settings):

call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat" -vcvars_ver=14.13


Then open the solution:

start msvs\arcadia.sln

8. Perform the following steps in RStudio:

1. Check for package updates: .
2. Open the catboost/catboost/R-package directory from the local copy of the CatBoost repository.

For example, if the cloned repository local path is C:\CatBoostRepository the following command should be used:

setwd("C:/CatBoostRepository/catboost/catboost/R-package")

1. Run the following commands:
install.packages('devtools')
devtools::build()
devtools::install()


#### Troubleshooting

Installation error

If you use script for installation, try to add the repos parameter to the install.packages('devtools') command.
Select any repository from the list.

Example: install.packages("devtools", repos="http://cran.us.r-project.org").