Question

Before I start explaining the problem – yes I looked in the Qt forums and website before coming here.

I downloaded and installed the Qt libraries and the IDE. After the installation I got the following:

http://store.picbg.net/pubpic/04/59/4ce35a1b489a0459.png

after I clicked on the command prompt icon I got the following:
http://store.picbg.net/pubpic/79/13/0d46b97041da7913.jpg

When I type “vcvarsall.bat” I get and invalid command error. I am obviously doing something wrong, question is – what exactly?

Answer 1

Your error simply means that vcvarsall.bat is not in a folder that is listed in your PATH environment variable. You can fix that in two ways.

• You can set your PATH environment variable to include the folder where vcvarsall.bat is located.
• You can cd into the folder where vcvarsall.bat is located and call vcvarsall.bat from there.

In my case (and by default), vcvarsall.bat is located in the following directory:

C:\Program Files\Microsoft Visual Studio 9.0\VC\vcvarsall.bat

EDIT: For Visual Studio 2017, the location has changed. It is now at:

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat