Project XOG fails with Referenced Task record [..] does not exist

Products

• Clarity PPM SaaS
• Clarity PPM On Premise

Issue/Introduction

When inserting a new Project XOG with tasks, it fails with error: 

<column name="name">5G Initiative</column>
<column name="UNIQUE_NAME">PRJ00001</column>
</KeyInformation>
<ErrorInformation>
<Severity>FATAL</Severity>
<Description>Project Object insert failed</Description>
<Exception><![CDATA[
java.lang.Exception: 74 : Referenced Task record (externalID=00500001) does not exist

Environment

All Supported Clarity releases

Cause

A task, referenced in the XOG import, is not present in XOG file

Resolution

1. Review the XOG for the references to the task
2. You may have a nextSibling or another reference to the externalID in the error (Example externalID=00500001 - look for 00500001)
3. Determine if you need to include the omitted task or remove the reference to it, and retry with the corrected XOG import file