moc: Cannot open options file specified with @
Usage: moc [options]
-o write output to file rather than stdout
-I add dir to the include path for header files
-E preprocess only; do not generate meta object code
-D[=] define macro, with optional definition
-U undefine macro
-i do not generate an #include statement
-p path prefix for included file
-f[] force #include, optional file name
-nn do not display notes
-nw do not display warnings
@ read additional options from file
-v display version of moc
需要确保工程目录路径里没有中文路径。否则可能就报这个报错。