Linux C++ standard library version errors

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I've tried installing and running the latest OpenStudio onto a Lubuntu 14.04. I'm getting this error:

OpenStudioApp: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.20' not found (required by OpenStudioApp)
OpenStudioApp: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `CXXABI_1.3.8' not found (required by OpenStudioApp)
OpenStudioApp: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.21' not found (required by OpenStudioApp)

I used Synaptic Package Manager to install libstdc++6 and libstdc++6-4.7-dev and I've run the following commands:

sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-update

If I run strings 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_DEBUG_MESSAGE_LENGTH