Error with ConstraintLayout: No resource found that matches the given name

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闹比i 2021-01-12 07:20
I learn how to use ConstraintLayout. And have problem.
My activity_test.xml

      
      
        
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                   [愿得一人]
                                             
                
                
                (楼主)
            
              
              
                2021-01-12 08:10
              

            
            
                        
Just replace (@id/btnScanQRCode and @id/tvReservedContInfo) with (@+id/btnScanQRCode and @+id/tvReservedContInfo). 

Try this:




    

        

        
    
             
                                                        
            
            
              
                
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