my "make" couldn't work with error "No rule to make target"

[shanchao]

[root@phxrueidb04 stumbleupon-opentsdb-33dff14]# make
make: *** No rule to make target `.git/HEAD', needed by `src/BuildData.java'.  Stop.

[root@phxrueidb04 stumbleupon-opentsdb-33dff14]# git --version
git version 1.7.5.4
[root@phxrueidb04 stumbleupon-opentsdb-33dff14]# java -version
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode)
[root@phxrueidb04 stumbleupon-opentsdb-33dff14]# uname -a
Linux phxrueidb04 2.6.18-164.el5 #1 SMP Tue Aug 18 15:51:48 EDT 2009 x86_64 x86_64 x86_64 GNU/Linux
[root@phxrueidb04 stumbleupon-opentsdb-33dff14]# gcc -v
Using built-in specs.
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-libgcj-multifile --enable-languages=c,c++,objc,obj-c++,java,fortran,ada --enable-java-awt=gtk --disable-dssi --enable-plugin --with-java-home=/usr/lib/jvm/java-1.4.2-gcj-1.4.2.0/jre --with-cpu=generic --host=x86_64-redhat-linux
Thread model: posix
gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)

[shanchao]

i realize that i downloaded the file from browser so that it's not git formatted, I init a new git dir and copied the .git into it, now it's compiled :)