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OverviewFelgo Installation › Libssl error

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    J Peel

    I have seen this error with others but not seen any solutions posted.


    $ ./FelgoInstaller-linux_x64-online.run
    ./FelgoInstaller-linux_x64-online.run: error while loading shared libraries: libssl.so.1.0.0: cannot open shared object file: No such file or directory


    Ubuntu 19.04

    Does anyone have a solution for this.  I have checked that all is installed correctly etc.  I have searched for answers elsewhere that might apply etc.


    Many thanks



    Felgo Team

    J Peel

    Great thanks all installed !


    Felgo User

    Hi J Peel.


    I am an Ubuntu new user,

    could you please share the procedure you used to install opennssl-libs_1.0.0

    in parallel with Ubuntu existing ones?





    Hi, I’m using Debian 9 and it’s very annoying the libssl1.0.0 requirement.

    Did you plan to upgrade your installer?



    Felgo Team

    Hi Luca,

    yes we are indeed planning to update it to get rid of this dependency.



    BlueT - Matthew Lien - 練喆明

    Just upgraded my Ubuntu to 20.04, and Felgo stopped working with the libssl error….



    FYI, for me, an easy way to install the obsolete libssl.so.1.0.0 libraries on Ubuntu 20.04 LTS seems to be downloading and installing the libssl1.0.0 (1.0.2n-1ubuntu5.3) package (available as .deb file for  Ubuntu 18.04 from this page) in a Konsole terminal using the following steps (which happens to install the libraries in /usr/lib/x86_64-linux-gnu/ where also the newer libraries reside):

    cd ~/Downloads     # switch to user's Download directory
    sudo wget http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb    # download deb file
    sudo dpkg -i libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb    # install deb package

    After that, Felgo installed on Ubuntu 20.04 LTS without problems and started the Felgo-branded Qt Creator right away.

    Given that openssl 1.0 is no longer supported (see here), I would suggest that updating the installer should be made a priority.



    download the older libssl.so.1.0.0 from here as mentioned in in this blog article. Copy libssl.so.1.0.0 and libcrypto.so.1.0.0 to /usr/lib/x86_64-linux-gnu


    BlueT - Matthew Lien - 練喆明

    Update: The deb download url which nugai provided is invalid now.

    New url: ​​http://archive.ubuntu.com/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu5.4_amd64.deb

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