U4-1445 - Getting an error editing macros (both newly created and also so previous)

Created by Scott Hugh Alexandar Petersen 12 Jan 2013, 18:36:28 Updated by Sebastiaan Janssen 12 Jan 2013, 20:09:42

Duplicates: U4-1442

I have upgraded from 4.11.1 to 4.11.2 and that's where the trouble started. Then I upgraded today from 4.11.2 to 4.11.3 but still no fix: The server was just updated to .net framework 4.5

The error is: Value cannot be null. Parameter name: input

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: Value cannot be null. Parameter name: input

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ArgumentNullException: Value cannot be null. Parameter name: input] System.Text.RegularExpressions.Regex.IsMatch(String input) +8863334 Umbraco.Web.UI.Umbraco.Developer.Macros.EditMacro.PopulateFieldsOnLoad(Macro macro, String macroAssemblyValue, String macroTypeValue) +216 umbraco.cms.presentation.developer.editMacro.Page_Load(Object sender, EventArgs e) +384 umbraco.BasePages.BasePage.OnLoad(EventArgs e) +19 Umbraco.Web.UI.Umbraco.Developer.Macros.EditMacro.OnLoad(EventArgs e) +16 System.Web.UI.Control.LoadRecursive() +71 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3178


Priority: Normal

Type: Exception

State: Duplicate


Difficulty: Normal

Category: Editor

Backwards Compatible: True

Fix Submitted:

Affected versions: 4.11.2, 4.11.3

Due in version:


Story Points: