# [Solved] RuntimeError: failed to execute [‘dot’, ‘-Tpdf’, ‘-O’, ‘test’], make sure the Graphviz executables are on your systems’ path

Hello Guys, How are you all? Hope You all Are Fine. Today I have installed Graphviz but I am still facing this error RuntimeError: failed to execute [‘dot’, ‘-Tpdf’, ‘-O’, ‘test’], make sure the Graphviz executables are on your systems’ path in python. So Here I am Explain to you all the possible solutions here.

Without wasting your time, Let’s start This Article to Solve This Error.

## How RuntimeError: failed to execute [‘dot’, ‘-Tpdf’, ‘-O’, ‘test’], make sure the Graphviz executables are on your systems’ path Error Occurs ?

I have installed Graphviz but I am still facing this error.

RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path

## How To Solve RuntimeError: failed to execute [‘dot’, ‘-Tpdf’, ‘-O’, ‘test’], make sure the Graphviz executables are on your systems’ path Error ?

1. How To Solve RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path Error ?

To Solve RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path Error Here You have to install the graphviz package in your system not Only python package. If You are using ubuntu system then just use this command to install graphviz in your system: sudo apt-get install graphviz. Second solution is Just need to Install windows package from Here. Install python graphviz package Add C:\Program Files (x86)\Graphviz2.38\bin to User path Add C:\Program Files (x86)\Graphviz2.38\bin\dot.exe to System Path and now your error must be solved.

2. RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path

To Solve RuntimeError: failed to execute ['dot', '-Tpdf', '-O', 'test'], make sure the Graphviz executables are on your systems' path Error Here You have to install the graphviz package in your system not Only python package. If You are using ubuntu system then just use this command to install graphviz in your system: sudo apt-get install graphviz. Second solution is Just need to Install windows package from Here. Install python graphviz package Add C:\Program Files (x86)\Graphviz2.38\bin to User path Add C:\Program Files (x86)\Graphviz2.38\bin\dot.exe to System Path and now your error must be solved.

## Solution 1: install the graphviz package in your system

Here You have to install the graphviz package in your system not Only python package. If You are using ubuntu system then just use this command to install graphviz in your system.

sudo apt-get install graphviz

## Solution 2: Use graphviz path in Code

You need to set Graphviz package path in your code just like this example.

import os
os.environ["PATH"] += os.pathsep + 'D:/Program Files (x86)/Graphviz2.38/bin/'

Now your problem must be solved.

## Solution 3: Download Graphviz for Windows.

1. Just need to Install windows package from Here.
2. Install python graphviz package
3. Add C:\Program Files (x86)\Graphviz2.38\bin to User path
4. Add C:\Program Files (x86)\Graphviz2.38\bin\dot.exe to System Path

## Summary

It’s all About this issue. Hope all solution helped you a lot. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you?