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49 changes: 26 additions & 23 deletions docs/error-messages/tool-errors/command-line-errors-d8000-through-d9999.md
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---
description: "Learn more about: Command-line errors and warnings"
title: "Command-line errors and warnings"
ms.date: "04/17/2019"
ms.assetid: d02ec7df-26a5-4198-ac92-87b29ec9d5c8
description: "Learn more about: Command-line errors and warnings"
ms.date: 04/17/2019
---
# Command-line errors and warnings

The articles in this section provide a reference to the command-line errors and warnings generated by the build tools. These messages have the form `Dxxxx`, where *xxxx* is a four-digit number.

[!INCLUDE[error-boilerplate](../../error-messages/includes/error-boilerplate.md)]
[!INCLUDE[error-boilerplate](../includes/error-boilerplate.md)]

## Command-line error messages

[Command-Line Error D8016](../../error-messages/tool-errors/command-line-error-d8016.md) \
[Command-Line Error D8021](../../error-messages/tool-errors/command-line-error-d8021.md) \
[Command-Line Error D8022](../../error-messages/tool-errors/command-line-error-d8022.md) \
[Command-Line Error D8027](../../error-messages/tool-errors/command-line-error-d8027.md) \
[Command-Line Error D8036](../../error-messages/tool-errors/command-line-error-d8036.md) \
[Command-Line Error D8037](../../error-messages/tool-errors/command-line-error-d8037.md) \
[Command-Line Error D8045](../../error-messages/tool-errors/command-line-error-d8045.md) \
[Command-Line Error D8048](../../error-messages/tool-errors/command-line-error-d8048.md) \
[Command-Line Error D8049](../../error-messages/tool-errors/command-line-error-d8049.md)
| Error | Message |
|--|--|
| [Command-Line Error D8016](command-line-error-d8016.md) | 'option1' and 'option2' command-line options are incompatible |
| [Command-Line Error D8021](command-line-error-d8021.md) | invalid numeric argument 'number' |
| [Command-Line Error D8022](command-line-error-d8022.md) | cannot open 'messagefile' |
| [Command-Line Error D8027](command-line-error-d8027.md) | cannot execute 'component' |
| [Command-Line Error D8036](command-line-error-d8036.md) | '/option' not allowed with multiple source files |
| [Command-Line Error D8037](command-line-error-d8037.md) | cannot create temporary il file; clean temp directory of old il files |
| [Command-Line Error D8045](command-line-error-d8045.md) | cannot compile C file 'file' with the /clr option |
| [Command-Line Error D8048](command-line-error-d8048.md) | cannot compile C file '*file-name*' with /ZW option |
| [Command-Line Error D8049](command-line-error-d8049.md) | cannot execute '*compiler-component*': command line is too long to fit in debug record |

## Command-line warning messages

[Command-Line Warning D9024](../../error-messages/tool-errors/command-line-warning-d9024.md) \
[Command-Line Warning D9025](../../error-messages/tool-errors/command-line-warning-d9025.md) \
[Command-Line Warning D9026](../../error-messages/tool-errors/command-line-warning-d9026.md) \
[Command-Line Warning D9027](../../error-messages/tool-errors/command-line-warning-d9027.md) \
[Command-Line Warning D9028](../../error-messages/tool-errors/command-line-warning-d9028.md) \
[Command-Line Warning D9035](../../error-messages/tool-errors/command-line-warning-d9035.md) \
[Command-Line Warning D9036](../../error-messages/tool-errors/command-line-warning-d9036.md) \
[Command-Line Warning D9040](../../error-messages/tool-errors/command-line-warning-d9040.md) \
[Command-Line Warning D9041](../../error-messages/tool-errors/command-line-warning-d9041.md) \
[Command-Line Warning D9043](../../error-messages/tool-errors/command-line-warning-d9043.md)
| Warning | Message |
|--|--|
| [Command-Line Warning D9024](command-line-warning-d9024.md) | unrecognized source file type 'filename', object file assumed |
| [Command-Line Warning D9025](command-line-warning-d9025.md) | overriding 'option1' with 'option2' |
| [Command-Line Warning D9026](command-line-warning-d9026.md) | options apply to entire command line |
| [Command-Line Warning D9027](command-line-warning-d9027.md) | source file '\<filename>' ignored |
| [Command-Line Warning D9028](command-line-warning-d9028.md) | minimal rebuild failure, reverting to normal build |
| [Command-Line Warning D9035](command-line-warning-d9035.md) | option '*option*' has been deprecated and will be removed in a future release |
| [Command-Line Warning D9036](command-line-warning-d9036.md) | '*option\_2*' instead of '*option\_1*' |
| [Command-Line Warning D9040](command-line-warning-d9040.md) | ignoring option '/analyze'; Code Analysis warnings are not available in this edition of the compiler |
| [Command-Line Warning D9041](command-line-warning-d9041.md) | invalid value '*option-value*' for '/*option-name*'; assuming '*assumed-value*'; add '/analyze' to command-line options when specifying this warning |
| [Command-Line Warning D9043](command-line-warning-d9043.md) | invalid value 'warning_level' for 'compiler_option'; assuming '4999'; Code Analysis warnings are not associated with warning levels |

## See also

Expand Down