ran markers sample and got an error

[haoshuang3394]

I have 4 s250e cameras calibrated and I got a project.ttp file. I tried to run the sample project named "markers", when the program ran to TT_Update(), it returned NPRESULT_NOFRAMEAVAILABLE

Code: Select all

while(!_kbhit())
    {
        result = TT_Update();

        if(result == NPRESULT_SUCCESS)
        {
            mFrameCounter++;

and this situation remains a long time. The cameras do not display any numbers like 1/2/3/4/5.

I hope to get your help, thanks very much.