About Libraries Environments
Libraries Environment is a user profile parameter that specifies the environment from which Studio retrieves connector libraries.
In a multi-environment tenant, each environment can potentially have different versions of connector libraries installed. Setting this parameter points Studio to the libraries you want to use while verifying your projects. This parameter is not as critical if your project does not use an endpoint that requires additional libraries to be installed. See the Connector Release Notes for a complete list of endpoints that require you to install additional libraries.
Note: The environment you select should
match the environment of the primary group the user is a member of. For example: If you select the Development
environment as the Libraries Environment, you should be a member of
groups in the Development environment.