Tears of the lesson! "Uncaught TypeError: Cannot set property 'value' of null"

There is a line of div style missing the " symbol. When formatting, there is an extra space in the id below. When the object is initialized, the id cannot be found. In addition, I am not very familiar with the front end (android development in my work), The editing software did not report any errors. I searched for a whole morning, but I didn't find it. After checking one by one, I finally found it. Although android development is the main work in my work, just record it as a diary.