make install时居然出现下面的错误

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cp: copying multiple files, but last argument `wap/wpt.php' is not a directory
Try `cp --help' for more information.
make[3]: *** [install-data-local] Error 1
make[2]: *** [install-am] Error 2
make[1]: *** [install-recursive] Error 1
make: *** [install-recursive] Error 1

不能理解
该如何解决呢？
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