it happen red caution:"Cannot resolve symbol 'mBlockLayoutRequests'"when i open ListView source code" : it happen red caution:"Cannot resolve symbol 'mBlockLayoutRequests'"when i open ListView source code,look it picture:http://i.stack.imgur.com/8K2Dw.png
.but i can find it in AdapterView that is inherited by ListView,look it picture http://i.stack.imgur.com/3uVW7.png

    boolean mBlockLayoutRequests = false;

when i click it ,it tip "Cannot find declaration to go to ", 
is it a error ? if it is a error ,what should i do for fix this error ?