This error occurs when the source is not found on the path for any process type other than CREATE_PATH_NODES. If the source is missing and the environment matches with the landscape as a node, the operation is not allowed. Otherwise, a "source not on the path" error is thrown.
System action
The system prevents the operation or displays a "source not on the path" error.
User response
Ensure that the source is present on the path for all process types except CREATE_PATH_NODES.