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---
path: "/docs/common-errors"
title: "Common Errors"
---
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### Errors you might encounter while setting up the project
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#### Redis connection error
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```bash
ArgumentError: invalid uri scheme
```
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This is an error thrown from redis connector. You might not have setup the redis environment variables properly. Please refer to dependencies section to install redis-server and [Configure Redis URL ](https://www.chatwoot.com/docs/environment-variables ) in the environment-variables section.
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#### pg gem Installation error
If you see the following error while bundle installation, provide the Postgres path as pg_config.
```
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
An error occurred while installing pg (1.2.3), and Bundler cannot
continue.
Make sure that `gem install pg -v '1.2.3' --source 'https://rubygems.org/'`
succeeds before bundling.
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
--with-pg-config=/path/to/pg_config
```
To fix this, try executing
```
gem install pg -v '1.2.3' --source 'https://rubygems.org/' -- --with-pg-config=path-to-postgres-installation/12/bin/pg_config
```
