> Open-IM relies on five open source high-performance components: **ETCD**, **MySQL**, **MongoDB**, **Redis**, **Kafka**. Before you deploy Open-IM-Server privately, please make sure that you have installed the above five components and **check the component connection parameters** in the configuration file. you must install the missing components first,If your server does not have the above components. **It is recommended to use it directly, if you have the above components, if not, Docker-compose is recommended, which you don't need to install dependenciesis and more convenient**.
#### Building from Source
1. Install [Go environment](https://golang.org/doc/install). Make sure Go version is at least 1.15.
