IDE's Design tab doesn't show "Hello World!"crying

The emulator outputs The Design tab does not print and produces an error. Please give me a solution.

Element: class com.intellij.psi.impl.source.xml.XmlTagImpl because: different providers: SingleRootFileViewProvider{myVirtualFile=file://C:/Users/ant11/AndroidStudioProjects/Hello/app/src/main/res/layout/activity_main.xml, content=VirtualFileContent{size=795}}(5b093b56); SingleRootFileViewProvider{myVirtualFile=file://C:/Users/ant11/AndroidStudioProjects/Hello/app/src/main/res/layout/activity_main.xml, content=VirtualFileContent{size=795}}(196f6653)