I keep getting the error:
E: The repository 'http://apt.llvm.org/bionic bionic Release' does not have a Release file.
when I try to install llvm. At the bottom of the source file (/etc/apt/sources.list), it is (what I think should be) the repository
...
deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main
I'm not sure if it hasn't been sourced correctly or if it's missing anything. Any suggestion would be welcomed. Thanks.