---
title: "Handling Calendar Issues in XER Files"
url: "https://help.nodeslinks.com/en/article/handling-calendar-issues-in-xer-files"
language: "en"
last_updated: "2025-02-12T09:05:25.218Z"
---

# Handling Calendar Issues in XER Files

## Handling Calendar Issues in XER Files

## Overview

Sometimes the upload to Nodes and Links fails due to P6 not exporting calendars properly to the .xer file. When this happens we will provide a list with the problematic calendars. 

![](https://cdn-assets.productfruits.com/60ab9921-899f-49ea-9674-4a02543fc4ab)

## Steps to Resolve Calendar Issues

To resolve this issue, follow these steps in Primavera P6:

1.  **Locate the Problematic Calendars**
    1.  Open Primavera P6.
    2.  Navigate to the **Calendars** section.
    3.  Identify the calendars listed in the error message.
2.  **Modify the Calendar**
    1.  Open the affected calendar.
    2.  Make a small temporary edit (e.g., add or modify a holiday).
    3.  Save the changes.
    4.  Reverse the edit by restoring the calendar to its original state.
    5.  Save again.
3.  **Reschedule the Project** 
4.  **Export the Schedule**
    1.  Export the project to an XER file.
    2.  Ensure that the export settings include calendars.
5.  **Re-Upload to Platform**
    1.  Attempt to upload the new XER file to our system.

## Additional Considerations

-   If the issue persists after following these steps, verify that no external modifications have been made to the XER file.
-   If furhter assistance is required, reach out to our support team at support@nodeslinks.com