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MS-Windows Troubleshooting

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error CS0305: Using the generic type 'System.Collections.Generic.IEnumerable<T>' requires 1 type arguments

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Symptom:

When compiling the following error is generated:

error CS0305: Using the generic type 'System.Collections.Generic.IEnumerable<T>' requires 1 type arguments

where the code is using IEnumerable, such as:

var enumerableElement = element as IEnumerable;

so generics are not used.

Cause:

The file is likely using:

using System.Collections.Generic;

which provides a definition for IEnumerable<T> but not IEnumerable.

 Remedy:

Add the following using clause:

using System.Collections;

this will provide the required definition for IEnumerable.

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These notes have been tested within Microsoft Visual Studio .NET 2012 (.NET 4), and may apply to other versions as well.