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I've been creating a model in Arc 10.0 for a few days now without problems. Then I added the Calculate Field Tool. I selected Make Variable --> From Parameter --> Expression. When I check off "Model Parameter" on the expression variable once it's been added to the model, save and close the model, then try to open it in Toolbox, I receive two popup errors, both saying "An error has occurred in the script on this page."

The first error says Error: Expected ')' in Line 79 Character 70 (Code 0): enter image description here

The second says The value of the property 'IntForm' is null or undefined, not a Function object in Line 465 Character 1 (Code 0): enter image description here

Both messages are referencing the following URL: file:///C:/Users/MYUSERNAME/AppData/Roaming/ESRI/Desktop10.0/ArcToolbox/Dlg/MdDlgContent.htm.

I located this article in ESRI support and followed the instructions, to no avail. (It must not be the exact same issue, as my message box doesn't reference Internet Explorer in the title). I also tried downloading SP5.

I opened the MdDlgContent.htm to take a look but that wasn't much help either because, despite some familiarity with Python and JavaScript, I am hardly a programmer.

Any help troubleshooting or resolving this issue would be greatly appreciated!!

I posted this same question in the ESRI Forums as well: http://forums.arcgis.com/threads/79448-Model-Builder-An-error-has-occurred-in-the-script-on-this-page.-MdDlgContent.htm

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You may be encountering the problem described here. However, I've never seen it on a customised tool. For OOTB tools the workaround I use is close ArcMap, re-open it and do exactly the same thing and all works until the next reboot. –  PolyGeo Mar 9 '13 at 6:42
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1 Answer

I had the same problem. I just repaired ArcGIS 10: insert the ArcGIS 10 DVD and select repair. It solved my problem.

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