<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/127742>127742</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            i cant install Clang 12 on ubuntu 24.04
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mathlover3
      </td>
    </tr>
</table>

<pre>
    i ran 
wget https://apt.llvm.org/llvm.sh
chmod +x llvm.sh
sudo ./llvm.sh 12
the result of the last command was
"+ CURRENT_LLVM_STABLE=18
+ BASE_URL=http://apt.llvm.org
+ needed_binaries=(lsb_release wget add-apt-repository gpg)
+ missing_binaries=()
+ for binary in "${needed_binaries[@]}"
+ which lsb_release
+ for binary in "${needed_binaries[@]}"
+ which wget
+ for binary in "${needed_binaries[@]}"
+ which add-apt-repository
+ for binary in "${needed_binaries[@]}"
+ which gpg
+ [[ 0 -gt 0 ]]
+ LLVM_VERSION=18
+ ALL=0
++ lsb_release -is
+ DISTRO=Ubuntu
++ lsb_release -sr
+ VERSION=24.04
+ UBUNTU_CODENAME=
+ CODENAME_FROM_ARGUMENTS=
+ source /etc/os-release
++ PRETTY_NAME='Ubuntu 24.04.2 LTS'
++ NAME=Ubuntu
++ VERSION_ID=24.04
++ VERSION='24.04.2 LTS (Noble Numbat)'
++ VERSION_CODENAME=noble
++ ID=ubuntu
++ ID_LIKE=debian
++ HOME_URL=https://www.ubuntu.com/
++ SUPPORT_URL=https://help.ubuntu.com/
++ BUG_REPORT_URL=https://bugs.launchpad.net/ubuntu/
++ PRIVACY_POLICY_URL=https://www.ubuntu.com/legal/terms-and-policies/privacy-policy
++ UBUNTU_CODENAME=noble
++ LOGO=ubuntu-logo
+ DISTRO=ubuntu
+ case ${DISTRO} in
+ [[ -n noble ]]
+ CODENAME=noble
+ [[ -n noble ]]
+ LINKNAME=-noble
+ '[' 1 -ge 1 ']'
+ '[' 1 '!=' - ']'
+ '[' 12 '!=' all ']'
+ LLVM_VERSION=12
+ OPTIND=2
+ '[' 1 -ge 2 ']'
+ getopts :hm:n: arg
+ [[ 0 -ne 0 ]]
+ declare -A LLVM_VERSION_PATTERNS
+ LLVM_VERSION_PATTERNS[9]=-9
+ LLVM_VERSION_PATTERNS[10]=-10
+ LLVM_VERSION_PATTERNS[11]=-11
+ LLVM_VERSION_PATTERNS[12]=-12
+ LLVM_VERSION_PATTERNS[13]=-13
+ LLVM_VERSION_PATTERNS[14]=-14
+ LLVM_VERSION_PATTERNS[15]=-15
+ LLVM_VERSION_PATTERNS[16]=-16
+ LLVM_VERSION_PATTERNS[17]=-17
+ LLVM_VERSION_PATTERNS[18]=-18
+ LLVM_VERSION_PATTERNS[19]=-19
+ LLVM_VERSION_PATTERNS[20]=-20
+ LLVM_VERSION_PATTERNS[21]=
+ '[' '!' _ ']'
+ LLVM_VERSION_STRING=-12
+ [[ -n noble ]]
+ REPO_NAME='deb http://apt.llvm.org/noble/ llvm-toolchain-noble-12 main'
+ wget -q --method=HEAD http://apt.llvm.org/noble
+ [[ ! -f /etc/apt/trusted.gpg.d/apt.llvm.org.asc ]]
++ apt-key list
++ grep -i llvm
+ [[ -z /etc/apt/trusted.gpg.d/apt.llvm.org.asc
uid           [ unknown] Sylvestre Ledru - Debian LLVM packages <sylvestre@debian.org> ]]
+ [[ noble == \b\o\o\k\w\o\r\m ]]
+ add-apt-repository -y 'deb http://apt.llvm.org/noble/  llvm-toolchain-noble-12 main'
Repository: 'deb http://apt.llvm.org/noble/ llvm-toolchain-noble-12 main'
Description:
Archive for codename: llvm-toolchain-noble-12 components: main
More info: http://apt.llvm.org/noble/
Adding repository.
Adding deb entry to /etc/apt/sources.list.d/archive_uri-http_apt_llvm_org_noble_-noble.list
Adding disabled deb-src entry to /etc/apt/sources.list.d/archive_uri-http_apt_llvm_org_noble_-noble.list
Hit:1 http://archive.ubuntu.com/ubuntu noble InRelease
Hit:4 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:5 http://archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:6 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Hit:2 https://apt.llvm.org/noble llvm-toolchain-noble-19 InRelease
Ign:3 https://apt.llvm.org/noble llvm-toolchain-noble-12 InRelease
Err:7 https://apt.llvm.org/noble llvm-toolchain-noble-12 Release
  404  Not Found [IP: 146.75.82.49 443]
Reading package lists... Done
E: The repository 'http://apt.llvm.org/noble llvm-toolchain-noble-12 Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
+ apt-get update
Hit:2 http://security.ubuntu.com/ubuntu noble-security InRelease
Hit:1 https://apt.llvm.org/noble llvm-toolchain-noble-19 InRelease
Ign:3 https://apt.llvm.org/noble llvm-toolchain-noble-12 InRelease
Hit:4 http://archive.ubuntu.com/ubuntu noble InRelease
Err:5 https://apt.llvm.org/noble llvm-toolchain-noble-12 Release
  404  Not Found [IP: 146.75.82.49 443]
Hit:6 http://archive.ubuntu.com/ubuntu noble-updates InRelease
Hit:7 http://archive.ubuntu.com/ubuntu noble-backports InRelease
Reading package lists... Done
E: The repository 'http://apt.llvm.org/noble llvm-toolchain-noble-12 Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details." and it failed to install 
</pre>
<img width="1" height="1" alt="" src="http://email.email.llvm.org/o/eJzsWE2P4joW_TWuzVWixCGVYsEiEOhGj4ISHy31KjKJCZ4OdsZ2qob59SPnAwhFNV1v-mlm8VpqFXGOzz32PffGCVGKZZzSAfKHyI8eSKn3Qg4ORO9z8Uql97AV6XHAQBIOyAnfMqphr3WhkBciPEF4Qgpt5_nrwRYyQ3hS_VR75ITJ_iBSQHj4LzgPqjIVYJ9x4GLkhHpPQVJV5hrEDsxVTpSGRBwOhKfwRhRyQoQxwkMYbZbL8Xwdz2bfnuPVOhzOxsiL3KcKMYRhuBrHm-UMeZHReVtmDeWUpjSNt4wTyahCXoTwU662saQ5JYpCtVqSphYptCVpIRTTQh4hKzKE-w3LgSnFeHZFc76_ExKqe0dgHKpF9FAwvA7uD1HPQX6Egshg6rlve5bs4ULSb-M0S_ttZO-36LdRm62uryuHDsEBK9PggIH7UXOv8sK38XI1XcwvzRDOjA-c-soMXGbXYqqBRdPVerlAXrTZllyXH8CVbODnQLhnO71mdDPczNebeLSIxvPw2XiyudGOxJPl4jkOl182z-P5enUGKFHKhALCE6oThCdCWZ10G8zLcrxef49bZhzUUqFSYGOYrVcIB2d8A7xeUCM9nkZd9d1lIRxc8ALCT3OxzSnMy8OWaGPty1At58XKuYGfEVW08krKNIpn0z8MOqVbRvj5ztfF82UJn1vN29ubXdPYiTiYsdOc1eblZbFc35y2p3nx0bzh5ku8HH84dVtmys5JyZN9QVKbU43wpFnJJc3LcvotHH2PXxaz6ej7r4nPaUZyhCeayoOyCE-tQuQsMQWBJ4VkryQ51kPHc6D3Lrva69niy-K021YuMnFt8stEQGKsXVdlAwgiYLxbcxaHKkq36G5r-Pmc2XT-RzPH6kzCgZmHA3DByii49Uh0MloHYX5jtzYqWD-D4i6W5Pk79HXvaPvP4mU9nVdl8oFG_I4qo1oUWgHywv0BeSFHXghEvu9gnF53sJQmOZEUrLAjKH4J1-vxcr66IfZ8zx_2DZMXWf07ONdpgK5zD-m2SPceErdIfA_ptUjvHrLXInv3kH6L9O8hH1vk4z1k0CJvmaSDfGqRT_eQbYrceznCbY7wvRzhJkfvDNqYHgcQ_9Tv8Wq9nM6_dJL30_o1rfLiIZTSLXx8ysKTusTxpDoAWlqIPNkTxuvSt1wMB8L4WVp13rL-CZZ1oHovUuRFX8dh9AshOtIRdsHanZ-npDBdW8tSaZraWZHZ6RWPTVTSWahhMyeaH_QIOVP6PJpJWoDFqhVd7di_PxsSOWHJUjj_MzQl_8HFG0d-BKtj_kqVlhRmNJUlWBBVj8oqh1CQ5AfJqGk3I9UiUc-pH6fV9njjbvoapU1iPeMdQP5oi_yRaP7_QP7orfktkT86dBlunIatI3zGCr_gheX5HOmFnyK_zx1RlUhWaCZMd0ZOGMpkz15pdVZNREo5OVAT9iOqRBwKwSnX5tFeEzvhs5AUGN8JM_YrSk3gNGU8g_NO2udBs2DKtTyCFteuqo-Lyja-rG1VryAuJbNM7JgUOjYxYyGzuIoY1_rtxsttFKbINqepCWcpmfyVIb8yjbzQvdqcmqZ7LqovGpNO-fJ0FK4pel0KRZNSMn38mMNqITfI_E_qscoiJZqqG1SPn6XakuRHIaS-RYZ__pJd781th_Y7dNPM2Nz783S4QzeWEnlh8N_QnckAek4PYC40TETJU9Oepi-mgtzeox349hO2e33o9by6_ywpqWzbNL6qMSvbtiESvBJnpq6rTwmn5oRwcLcc70rFAaSCKuBCw568UiDtLdixnJq6nZvYG2MOo3AnxQFUaV6NL8UkxDQhDVsKqeAUKmPS_IjwCAhPgSnQeyrpznSTU3Fuj5DSHSlzfQq0orR6PNUECD89IdyHA-GF2RfTyS6jSkpMu6tClIqaNsd3LCtlPZxSTViu7LbDF9oyz-Ha6VeO_E1l5_6f2vtmh_lck6orxP_fVMif7EQfN7Xg9zS1vyv3r61cjGsVGnaEmchaAONKm_fdh3TgpX2vTx7owA28ft8L-p73sB_4_WDn9h3_cfcYODghpL91g9TppZS6AfHxAxtgB_sOdvtOz_E9z94lxNltaT9I_R1JiYN6Dj0Qlp_y8sCUKunAxUHQww852dJcVZ-WMU5ywjOEzbvigxxUeduWmUI9pzbDiUIzndMBM1uuT4sYmdnmdV5wKC--fD2UMh90Sy1jel9u228s5pRe_7EKKf5BE3OcqVQqhCeN0NcB_k8AAAD__-nhBDI">