Colibri IMX6 linux error message /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.21' not found

  1. Using Eclipse IDE for C/C++ (version Neon.2 release 4.6.2 on a laptop running Ubuntu 16.04 LTS)
  2. Linaro cross compiler version 5.4.1-2017.01 with prefix arm-linux-gnueabihf-

I don’t think that toolchain matches anything any of our BSPs were ever built with. Have a look at this article on our developer website or alternatively our new getting started guide.

  1. I am using the same image as shipped from Toradex. I received the module last week.

I agree that it may sound stupid for us to ship modules with old unsupported BSPs but here that was unfortunately the case. However whatever we ship it with there may always be a newer or more stable BSP available when a customer receives it. We therefore recommend for our customers to always first make sure to run the latest stable or beta BSP as per the following article. Alternatively you may try our new Toradex Easy Installer which soon will be what all our modules will ship with.

Not sure how to find this out to give you better info…is it by typing uname -r ?

That would be a start but e.g. cat /etc/issue usually tells you the full story.