When  customer gets the development code of the Qunsuo PDA handheld terminal, there is no syntax error in the import code, 

but it always reports an error when running and compiling. 

Is there any problem with the demo provided?

This situation is caused by many customers who have not obtained the PDA handheld terminal product and temporarily use the mobile phone as a PDA to run and compile the demo. 

Because the mobile phone is not equipped with hardware such as scan head and print head.

 It is recommended that customers look at the demo code first, and then compile it after receiving the machine.

Shenzhen Qunsuo Technology Co., Ltd  

https://www.qsprinter.com/

info@szqunsuo.com