# Missing Plugins error when a transformation or job is opened

If you try to open a transformation or job that contains a step or entry not installed in your copy of the PDI client, the following error message appears:

<figure><img src="https://773338310-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYwnJ6Fexn4LZwKRHghPK%2Fuploads%2FPSrjOtMG05ucGZwoBPFp%2Fpdia_dialog_missing_plugin.png?alt=media&#x26;token=2091a2c4-1bfe-4f18-aa70-759572a7f13b" alt=""><figcaption><p>Image shows an example of the missing plugins message.</p></figcaption></figure>

To resolve this issue, either add the step or entry in the PDI client or find it in the Plugin Manager and install it. For details see [Use Plugin Manager](https://docs.pentaho.com/pdia-data-integration/use-plugin-manager).&#x20;