Utf-8 / GBK/utF-8 / GBK/utF-8 1, Go to the Settings of File Encodings, change IDE Encoding to UTF-8 2, replace the encodings. XML File under IDEA, restore the last setting 3, or change the encodings. XML configuration. Encodings. XML file is a problem with GBK and UTF-8. Remember to change it several times