JavaCard OS

I have a problem on pyGlobalPlatform. I tried to install pyGlobalPlatform, but it always failed. Here is the error info

Please set environment variable GLOBALPLATFORM_ROOT to specify the root of library GlobalPlatform.

Has anyone encountered this error? What operation caused this error? many thanks.

You should set GlobalPlatform dir as Environment variable:

Thanks for your answer. I did as you said, now it returns "Unable to find vcvartall.bat". Does that mean I should install Visual Studio ?

Sajaki wrote:Thanks for your answer. I did as you said, now it returns "Unable to find vcvartall.bat". Does that mean I should install Visual Studio ?

Yes, you need to install Visual Studio first.