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尝试在Ubuntu 12.04上安装ns-2.33时发生以下错误。 我该如何解决这个问题ns2安装权限被拒绝
m -f embedded-tcl.cc
./tcl2c++ et_tcl ../lib/tcl8.4/init.tcl ../lib/tcl8.4/history.tcl ../lib/tcl8.4/word.tcl ../lib/tcl8.4/http1.0/http.tcl > embedded-tcl.cc
/bin/sh: 1: ./tcl2c++: Permission denied
make: *** [embedded-tcl.cc] Error 126
tclcl-1.19 make failed! Exiting ...
See http://www.isi.edu/nsnam/ns/ns-problems.html for problems