netbeans运行程序有错误

init:
deps-jar:
Compiling 2 source files to G:\netBeansSubJact\ContactEditor\build\classes
Warning: modified in the future.
Warning: my modified in the future.
Warning: my\contacteditor modified in the future.
compile:
run:
这是甚么问题啊！ 我的界面时可以出来的。但有这错误不知道怎么回事
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