My shiny app works locally but shows "Disconnected from the server" when deploying. Is issue related to using Julia?

[alisonrb]

I'm having an error when trying to deploy my Shiny app. It runs locally, but whenever I republish and try to access it through the link, within seconds the screen is greyed out and "Disconnected from the server" appears. I have looked through the logs and have this message:

/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /usr/local/julia-1.0.2/bin/../lib/julia/libLLVM-6.0.so)

My app uses Julia, so I'm wondering if the error is related to this. Does anyone know how I might go about fixing this problem?

[aphillips]

Hi Alison,

Were you able to figure this out? May be having a similar problem, and there's not a whole lot of literature on this subject.

[josh]

Thank you for reporting this, and I am sorry for the inconvenience.

The version of libc++ might be too old for Julia right now:

$ ldd /usr/local/julia-1.0.2/lib/julia/libLLVM-6.0.so
/usr/local/julia-1.0.2/lib/julia/libLLVM-6.0.so: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.22' not found (required by /usr/local/julia-1.0.2/lib/julia/libLLVM-6.0.so)
        linux-vdso.so.1 =>  (0x00007ffdd42b7000)
        /lib/x86_64-linux-gnu/libSegFault.so (0x00007ff6429d7000)
        librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007ff6427cf000)
        libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ff6425cb000)
        libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ff6423ae000)
        libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007ff64202c000)
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007ff641d23000)
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007ff641b0d000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ff641743000)
        /lib64/ld-linux-x86-64.so.2 (0x00007ff645878000)
$ strings /usr/lib/x86_64-linux-gnu/libstdc++.so.6 | grep GLIBCXX
GLIBCXX_3.4
GLIBCXX_3.4.1
GLIBCXX_3.4.2
GLIBCXX_3.4.3
GLIBCXX_3.4.4
GLIBCXX_3.4.5
GLIBCXX_3.4.6
GLIBCXX_3.4.7
GLIBCXX_3.4.8
GLIBCXX_3.4.9
GLIBCXX_3.4.10
GLIBCXX_3.4.11
GLIBCXX_3.4.12
GLIBCXX_3.4.13
GLIBCXX_3.4.14
GLIBCXX_3.4.15
GLIBCXX_3.4.16
GLIBCXX_3.4.17
GLIBCXX_3.4.18
GLIBCXX_3.4.19
GLIBCXX_3.4.20
GLIBCXX_3.4.21
GLIBCXX_DEBUG_MESSAGE_LENGTH

I will file an issue to track this, but no guarantees for a timeline.