installation problem

[rach1994]

Hello,
Could you help me find a solution for this problem when installing this version 8 Cordially,

[bltdavid]

Is the 'LENOVO' user also an administrator of the machine?

Is your Anti-Virus software interfering with the installation?

[Emma1]

when NT8 application is open more than once . Ninjatrader 8 wants execute only one application.

[bltdavid]

Correct.

Only a single instance of NinjaTrader 8 may be running on your machine.

This is by design. It is not a bug.

However, if your screenshot shows what happens when you try starting
a second instance of NinjaTrader 8 -- well, yep, that error is a bug.

The error message in your screenshot shows NinjaTrader has crashed.

Normally, when you try starting a second instance of NinjaTrader 8, you
should see a nice polite error message about 'only one instance per
machine is allowed'.

Which version of NinjaTrader 8 are you running?

[rach1994]

Hello , I want to thank the people who answered me, the problem had occurred because of my Antivirus but I managed to launch NijnaTrader correctly .Thank you for your help and collaboration