Make it actually work

Author: Jaykul

ErrorView.ps1xml

@@ -18,9 +18,8 @@
               </ExpressionBinding>
               <ExpressionBinding>
                 <ScriptBlock>
-                  "Hello World"
-                  if ($formatter = Get-Command "ConvertTo-Error$($ErrorView)" -ListImported) {
-                    &amp;$formatter $_
+                  if ($formatter = Get-Command "ConvertTo-Error*$($ErrorView)*" -ListImported) {
+                    &amp;@($formatter)[0] $_
                   } else {
                     ConvertTo-ErrorNormalView $_
                   }

ErrorView.psd1

@@ -5,7 +5,6 @@
     CompanyName          = 'PoshCode'
 
     RootModule           = 'ErrorView.psm1'
-    FormatsToProcess     = 'ErrorView.ps1xml'
     ModuleVersion        = '0.0.1'
     CompatiblePSEditions = @("Core", "Desktop")
 

ErrorView.psm1

@@ -1,3 +1,12 @@
+param(
+    [ArgumentCompleter({ (Get-Command ConvertTo-Error* -ListImported).Name -replace "ConvertTo-Error(?:View)?(.*)(?:View)",'$1' })]
+    $ErrorView
+)
+
+# We need to overwrite the ErrorView
+# So -PrependPath, instead of FormatsToProcess
+Update-FormatData -PrependPath $PSScriptRoot\ErrorView.ps1xml
+
 function Write-NativeCommandError {
     [CmdletBinding()]
     param(
@@ -37,7 +46,6 @@ function Write-NativeCommandError {
         $myinv.InvocationName + " : "
     }
 }
-
 function ConvertTo-ErrorCategoryView {
     [CmdletBinding()]
     param(
@@ -48,7 +56,6 @@ function ConvertTo-ErrorCategoryView {
     $CurrentError.CategoryInfo.GetMessage()
 }
 
-
 function ConvertTo-ErrorSimpleView {
     [CmdletBinding()]
     param(
@@ -95,7 +102,6 @@ function ConvertTo-ErrorSimpleView {
         }
     }
 }
-
 function ConvertTo-ErrorNormalView {
     [CmdletBinding()]
     param(