CODEWITHSUNDEEP
c++linuxqtubuntulibstdc++
Roman Karetnyy
Roman Karetnyy

Reputation: 95

Two libstdc++.so.6 files and version `GLIBCXX_3.4.21' not found error

I have Ubuntu 15.10 with GCC 5.2.1 and Qt 5.5.1. When I try to run my Qt application, I get this error:

~/Qt/builds/gvis-Desktop_Qt_5_5_1_GCC_64bit-Debug/app/gvis: ~/Qt/5.5/gcc_64/lib/libstdc++.so.6: version `GLIBCXX_3.4.21' not found

strings command shows that /usr/lib/x86_64-linux-gnu/libstdc++.so.6 file has GLIBCXX_3.4.21 and ~/Qt/5.5/gcc_64/lib/libstdc++.so.6 hasn't.

I tried to replace qt libstdc++.so file with system one but got a lot of errors in runtime.

Why there are another libstdc++.so file in Qt SDK directory? And how to get my app running again? It worked well on Ubuntu 15.04.

(Please don't tell me that I should downgrade my Ubuntu or Qt SDK)

Upvotes: 2

Views: 2971

Answers (1)

Roman Karetnyy
Roman Karetnyy

Reputation: 95

Qt SDK reinstall fixed the error. The fresh Qt SDK do not contains libstdc++.so file and everything is working well.

Upvotes: 1

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