# Screen Builder XML Viewer: An error has occurred in ... **URL:** \ **Category:** Forum\ **Tags:** Adabas-Natural, Natural, Natural-Other-Addons, Natural-Related-Products, Terminal-Emulation-and-Screen-Scraping\ **Created:** [January 5, 2007, 9:35pm UTC](https://techcommunity.softwareag.com/t/screen-builder-xml-viewer-an-error-has-occurred-in/61842 "2007-01-05T21:35:22Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Matthias1](https://avatars.discourse-cdn.com/v4/letter/m/9fc348/32.png) [@Matthias1](https://techcommunity.softwareag.com/u/Matthias1)\ **Post date:** [January 5, 2007, 9:35pm UTC](https://techcommunity.softwareag.com/t/screen-builder-xml-viewer-an-error-has-occurred-in/61842/1 "2007-01-05T21:35:22Z")
Hello all! Screen Builder XML Viewer prints out the following: > [@](#): > > An error has occurred in converting the screen format We did some “investigations” and found, that some database-fields containing control-characters were displayed in that case. To narrow down the problem, we wrote the following Natural Program: ```auto input 'control-character 1F on next page. Press ENTR' input 'here it is - in brackets' H'281F29' end ``` Input #1 works of course. Input #2 crashes with the error described above. We think, it’s a bug inside Screen Builder. Maybe the control character is not properly masked with  inside the XML-document… Can anybody reproduce this “bug”? Our configuration: NAT 6.1.1 PL 22 on Solaris Entire Screen Builder 5.2.1.9 on Windows 2003 Server ---
**Author:** ![system](https://global.discourse-cdn.com/techcommunity/original/3X/c/d/cd19967bb605d28a72d77eb83a1cae22f3df2eb8.svg) [@system](https://techcommunity.softwareag.com/u/system)\ **Post date:** [April 2, 2021, 2:41pm UTC](https://techcommunity.softwareag.com/t/screen-builder-xml-viewer-an-error-has-occurred-in/61842/2 "2021-04-02T14:41:00Z")