ladybird/Documentation/Troubleshooting.md
2024-06-03 10:53:53 +02:00

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# Troubleshooting
In case of an error, you might find an answer of how to deal it here.
## Building Ladybird
### CMake fails to configure the build because it's outdated
Ensure your CMake version is >= 3.16 with `cmake --version`. If your system doesn't provide a suitable
version of CMake, you can download a binary release from the [CMake website](https://cmake.org/download).
### The toolchain is outdated
We strive to use the latest compilers and build tools to ensure the best developer experience; so every
few months, the toolchain needs to be updated. When such an update is due, an error like the following
will be printed during the build:
```
CMake Error at CMakeLists.txt:28 (message):
GNU version (13.1.0) does not match expected compiler version (13.2.0).
Please rebuild the GNU Toolchain
```
Or like this one:
```
Your toolchain has an old version of binutils installed.
installed version: "GNU ld (GNU Binutils) 2.40"
expected version: "GNU ld (GNU Binutils) 2.41"
Please run Meta/serenity.sh rebuild-toolchain x86_64 to update it.
```
Run `Meta/serenity.sh rebuild-toolchain x86_64` to perform the update.
CMake might cache the compiler version in some cases and print an error even after the toolchain has been rebuilt.
If this happens, run `Meta/serenity.sh rebuild x86_64` to start over from a fresh build directory.
### GCC is missing or is outdated
Ensure your gcc version is >= 13 with `gcc --version`. Otherwise, install it. If your gcc binary is not
called `gcc` you have to specify the names of your C and C++ compiler when you run cmake, e.g.
`cmake ../.. -GNinja -DCMAKE_C_COMPILER=gcc-13 -DCMAKE_CXX_COMPILER=g++-13`.
### Legacy renegotiation is disabled
Ensure your `/etc/ssl/openssl.cnf` file has the following options:
```console
[openssl_init]
ssl_conf = ssl_sect
[ssl_sect]
system_default = system_default_sect
[system_default_sect]
MinProtocol = TLSv1.2
CipherString = DEFAULT@SECLEVEL=1
Options = UnsafeLegacyRenegotiation
```