How To Fix PAK019 - Package &1 contains dev. objects and therefore cannot be a main package

SAP Error Message - Details

• Message type: E = Error

• Message class: PAK - Package API / Package Tools

• Message number: 019

• Message text: Package &1 contains dev. objects and therefore cannot be a main package

What causes this issue?

The package &V1& contains development objects (except subpackages and
package interfaces) and therefore <ZH>cannot</> be a main package.
Main packages can only contain subpackages and package interfaces as
development objects.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PAK019 - Package &1 contains dev. objects and therefore cannot be a main package ?

  The SAP error message PAK019 indicates that the package you are trying to set as a main package contains development objects. In SAP, a main package is a package that can contain other packages but should not contain any development objects (like programs, function modules, classes, etc.). 
  Cause:
  The error occurs because:
  
  The package you are trying to designate as a main package has development objects within it.
  Main packages are intended to serve as containers for sub-packages, and they should not directly contain any development objects.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Package Contents:
  
  Go to the package in question using transaction code SE80 or SE21.
  Check the contents of the package to identify any development objects.
  
  
  
  Move Development Objects:
  
  If you find development objects in the package, you need to move them to a different package that is not intended to be a main package.
  You can do this by using transaction SE80 or SE21 to change the package assignment of the objects.
  
  
  
  Create a New Package:
  
  If necessary, create a new package specifically for the development objects.
  Ensure that this new package is not set as a main package.
  
  
  
  Set the Package as Main Package:
  
  Once the development objects have been moved out, you can then set the package as a main package.
  
  
  
  Related Information:
  
  Package Hierarchy: In SAP, packages can be organized in a hierarchy where main packages can contain sub-packages, but not development objects.
  Transport Requests: Be aware that moving objects between packages may affect transport requests. Ensure that you handle transport requests appropriately to avoid issues during transport.
  Authorization: Ensure you have the necessary authorizations to change package assignments and create new packages.
  
  By following these steps, you should be able to resolve the PAK019 error and successfully set your package as a main package.