# Plug-in Dependencies

The Plug-in Dependencies view generates and displays caller and callee relationships from within the plug-in ecosystem defined. The view is available under Window > Show View > Other... > PDE > Plug-in Dependencies .

## Callers

The callers visualization shows all the plug-ins that require a certain plug-in. The visualization is available in both hierarchical and flat-table modes.

## Callees

The callees visualization shows all the plug-ins required by a certain plug-in. The visualization is available in both hierarchical and flat-table modes.

## Show State Status

The Show State status visualization shows the current status of the resolver state in PDE.

Any plug-ins displayed with a red X are currently unresolved. Expand an unresolved plug-in to reveal the unsatisfied constraints which result in the unresolved status.

When you open the children of a resolved plug-in, you will see its dependencies separated into imported packages and required bundles. The child of each dependency is the plug-in which satisfies the particular dependency.