someTroubleshooting

Warning: File 'repomd.xml' from repository 'packages-microsoft-com-prod' is unsigned.

    Note: Signing data enables the recipient to verify that no modifications occurred after the data
    were signed. Accepting data with no, wrong or unknown signature can lead to a corrupted system
    and in extreme cases even to a system compromise.

    Note: File 'repomd.xml' is the repositories master index file. It ensures the integrity of the
    whole repo.

    Warning: We can't verify that no one meddled with this file, so it might not be trustworthy
    anymore! You should not continue unless you know it's safe.

File 'repomd.xml' from repository 'packages-microsoft-com-prod' is unsigned, continue? [yes/no] (no): no
Error building the cache:
[packages-microsoft-com-prod|https://packages.microsoft.com/rhel/7/prod/] Valid metadata not found at specified URL
Warning: Skipping repository 'packages-microsoft-com-prod' because of the above error.
Some of the repositories have not been refreshed because of an error.
Loading repository data...
Reading installed packages...
Package 'python3-curses' not found.
'git' is already installed.
No update candidate for 'git-2.21.0-1.fc30.x86_64'. The highest available version is already installed.
'python3' is already installed.
No update candidate for 'python3-3.7.3-3.fc30.x86_64'. The highest available version is already installed.
'curl' is already installed.
No update candidate for 'curl-7.64.0-7.fc30.x86_64'. The highest available version is already installed.
'automake' is already installed.
No update candidate for 'automake-1.16.1-10.fc30.noarch'. The highest available version is already installed.
'libjpeg-devel' not found in package names. Trying capabilities.
'libjpeg-turbo-devel' providing 'libjpeg-devel' is already installed.
'pulseaudio' is already installed.
No update candidate for 'pulseaudio-12.2-6.fc30.x86_64'. The highest available version is already installed.
'libtool' is already installed.
No update candidate for 'libtool-2.4.6-29.fc30.x86_64'. The highest available version is already installed.
'autoconf' is already installed.
No update candidate for 'autoconf-2.69-29.fc30.noarch'. The highest available version is already installed.
'libicu-devel' is already installed.
No update candidate for 'libicu-devel-63.2-2.fc30.x86_64'. The highest available version is already installed.
'libffi-devel' is already installed.
No update candidate for 'libffi-devel-3.1-19.fc30.x86_64'. The highest available version is already installed.
'pkg-config' not found in package names. Trying capabilities.
'pkgconf-pkg-config' providing 'pkg-config' is already installed.
'libfann-devel' not found in package names. Trying capabilities.
No provider of 'libfann-devel' found.
'libopenssl-devel' not found in package names. Trying capabilities.
No provider of 'libopenssl-devel' found.