"cannot find -lGL" error

[rapid84]

Hi,
I am trying to build QT weatherinfo example in my ubuntu machine but i got this error:

error: cannot find -lGL

What is the reason of this?

[Ratzz]

@rapid84
You should nstall package "libgl1-mesa-dev" using:

sudo apt-get install libgl1-mesa-dev

Sometimes this helps

sudo apt-get install libglu1-mesa-dev -y

[rapid84]

@Ratzz
Thanks, but now i got this error :

QSslSocket: cannot resolve SSLv2_client_method

[Ratzz]

@rapid84
I think you should upgrade the build machines using

sudo apt-get install build-essential

[rapid84]

@Ratzz said:

sudo apt-get install build-essential

I have already upgraded my machine but still get the error:

qt.network.ssl: QSslSocket: cannot resolve SSLv2_client_method
qt.network.ssl: QSslSocket: cannot resolve SSLv2_server_method

[mrjj]

Hi
I think you need to install SSL in ubuntu if not already install
maybe
sudo apt-get install libssl-dev

[rapid84]

@mrjj said:

sudo apt-get install libssl-dev

I have already done , but still getting error.

[mrjj]

but do u use SSL?

[Ratzz]

@rapid84
what is your Qt and OpenSSL version?

[rapid84]

@Ratzz @mrjj

The instructions have solved my problem :

https://askubuntu.com/questions/711863/installing-qt-5-5-1-on-ubuntu-14-04-throws-qt-network-ssl-error-on-terminal

But when i run it , it holds the "Loading weather data" screen and it does not show anything