Ethereum: When building bitcoind, I receive error « headers.h:36:20: fatal error: db_cxx.h: No such file or directory »

Ethereum Development in Debian -based linux: surpassing errors with db_cxx.h

As a developer, working on Ethereum projects, building and maintaining blockchain can be a challenging task. A common problem found by many developers is finding errors related to the lack of header files, specifically db_cxx.h. In this article, we will delve deeper into the causes of these errors and provide guidance on how to overcome them by creating Ethereum on Linux, based on Debian.

Why do I get the « not this file or directory » error?

The error message « Headers.h: 36: 20: Fatal error: db_cxx.h: No file or directory » indicates that the compiler cannot find the header’s header file db_cxx.h. This file is part of the Ethereum C ++ libraries, which are used by the Ethereum development team. To solve this problem, you need to ensure that the necessary dependencies are installed on your system.

Installing the necessary packages

To build and execute Ethereum on Linux, based in Debian, you will need to install multiple packages:

• Libdb4 (a PostgreSQL database library)

2.

3.

You can install these packages using the package manager:

`Bash

SUDO APT-GET INSTALL LIBDB4-DEV DBCPP

`

Overcoming errors with missing header files

To solve the error, you need to ensure that the necessary dependencies are installed and configured correctly. Here is a step by step guide:

• Reinstale libdb4 : If you have several versions oflibdb4 installed, try to reinstall it using:

`Bash

SUDO APT-GET REMOVE LIBDB4-*

`

• Install DBCPP Manually : Download and compile the DBCPPpackage on the official website: < Follow the installation instructions to installDBCPP.

• Update compiler settings : Make sure your compiler is configured correctly to use the C ++ Wrapper for the PostgreSQL database. You can do this by adding the following flags to your compiler command:

Bash

-std = C ++ 11 -Wall -Wextra -g -i/USR/Include/PostgreSQL/10 -L/USR/LIB/PostgreSQL/10 -LDBC

`

Replace /USR/Include/PostgreSQL/10 E/USR/LIB/PostgreSQL/10 By the real paths of your system.

• Reconstructs Ethereum : After updating the compiler settings, rebuild the Ethereum using:

`Bash

make clean && to do

`

This should solve any problems related to the lack of header files.

Troubleshooting

If you find difficulties during the reconstruction of Ethereum or running, make sure:

• Your system is updated with the latest packages.

• Dependencies LIBDB4 EDBCPP are installed correctly.

• You updated the compiler settings according to the above instructions.

• You rebuilt Ethereum using the correct commands.

By following these steps, you can solve the "Headers.H: 36: 20: Fatal Error: DB_CXX.H: No file or directory" Error and build successfully and run Ethereum on your Debian -based Linux system.

ETHEREUM DOES BITCOIN HASH