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Initial page of CS8802 error #43728

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Initial page of CS8802 error #43728

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Create initial page of CS8802
BartoszKlonowski Jul 3, 2024
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Link CS8803 and top-level statements to the page
BartoszKlonowski Nov 23, 2024
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49 changes: 49 additions & 0 deletions docs/csharp/language-reference/compiler-messages/cs8802.md
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---
description: "Compiler Error CS8802"
title: "Compiler Error CS8802"
ms.date: 7/01/2024
f1_keywords:
- "CS8802"
helpviewer_keywords:
- "CS8802"
---
# Compiler Error CS8802

Only one compilation unit can have top-level statements.

This error indicates that there are two or more [top-level statements](../../fundamentals/program-structure/top-level-statements.md) in a single compilation unit (single solution, project or a single group of files compiled into a single binary file).

## Example

The following sample of single compilation unit generates CS8802:

```xml
<!-- SingleCompilationUnit.csproj -->
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
</PropertyGroup>
</Project>
```

```csharp
// EntryFile.cs

int a = 0;
```

```csharp
// SecondaryEntryFile.cs

int b = 1; // CS8802: The top level statement already exists in EntryFile.cs
```

## To correct this error

Use only one top-level statement in the project.
<br/>Top-level statements acts as an entry point to the program, so only one file may have top-level statement. All other statements must be defined as members of classes or structs.

## See also

- [Top-level statements](../../fundamentals/program-structure/top-level-statements.md)
- [CS8803](./cs8803.md)
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