SAP Note 26313 - No reporting tree for current application (PS)

Symptom:

The message "No reporting trees were created for the current application" (message KN124) appears when report selection is accessed in the Project System (transaction CJR1).

Cause and prerequisites

Transport error.

Solution
Please register reporting tree PS01 for the application PS: R/3 Customizing Implementation Guide -> Project System -> Information system -> General functions -> Create/Change report selection (transaction OPIR)
Enter report tree PS01 (can be selected via 'Possible entries') and save your entry.
The tree PS01 is now registered as the standard tree for the PS application.