Problems with installing Hardware Sensors Indicator (indicator-sensors-0.1)

Hi, I've a problem with installing the Hardware Sensors Indicator (by Alex Murray?)
My first language is not english but german, so it would be a lot easier if you write in german (if possible), but i will understand english too :)
I downloaded indicator-sensors-0.1 and extracted it in my download folder.
Then I opened the terminal (I'm using Ubuntu) and typed, as in the file INSTALL said, 'cd 'path'' to the indicator-sensors-0.1 folder and then ./configure .
Although I had installed most packages I got several problems with 'Pqackage... not found...'
I solved all of them with installing a package with '-dev' at its end or with reinstalling them.
But then i got this problem:

user_name@computer_name:~/Downloads/indicator-sensors-0.1$ ./configure
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking whether to disable maintainer-specific portions of Makefiles... yes
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/bin/ld
checking if the linker (/usr/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop
checking for /usr/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for mt... mt
checking if mt is a manifest tool... no
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... no
checking whether NLS is requested... yes
checking for intltool >= 0.40.0... 0.41.1 found
checking for intltool-update... /usr/bin/intltool-update
checking for intltool-merge... /usr/bin/intltool-merge
checking for intltool-extract... /usr/bin/intltool-extract
checking for xgettext... /usr/bin/xgettext
checking for msgmerge... /usr/bin/msgmerge
checking for msgfmt... /usr/bin/msgfmt
checking for gmsgfmt... /usr/bin/msgfmt
checking for perl... /usr/bin/perl
checking for perl >= 5.8.1... 5.12.4
checking for XML::Parser... ok
checking for msgfmt... (cached) /usr/bin/msgfmt
checking for gmsgfmt... (cached) /usr/bin/msgfmt
checking for xgettext... (cached) /usr/bin/xgettext
checking for msgmerge... (cached) /usr/bin/msgmerge
checking for ld used by GCC... /usr/bin/ld -m elf_x86_64
checking if the linker (/usr/bin/ld -m elf_x86_64) is GNU ld... yes
checking for shared library run path origin... done
checking for CFPreferencesCopyAppValue... no
checking for CFLocaleCopyCurrent... no
checking for GNU gettext in libc... yes
checking whether to use NLS... yes
checking where the gettext function comes from... libc
checking locale.h usability... yes
checking locale.h presence... yes
checking for locale.h... yes
checking for LC_MESSAGES... yes
checking libintl.h usability... yes
checking libintl.h presence... yes
checking for libintl.h... yes
checking for ngettext in libc... yes
checking for dgettext in libc... yes
checking for bind_textdomain_codeset... yes
checking for msgfmt... (cached) /usr/bin/msgfmt
checking for dcgettext... yes
checking if msgfmt accepts -c... yes
checking for gmsgfmt... (cached) /usr/bin/msgfmt
checking for xgettext... (cached) /usr/bin/xgettext
checking for catalogs to be installed... ca de eo es ro ru tr uk
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GLIB... yes
checking for GIO... yes
checking for GTK... yes
checking for APPINDICATOR... no
configure: error: Package requirements (appindicator3-0.1 >= 0.0.7) were not met:

No package 'appindicator3-0.1' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables APPINDICATOR_CFLAGS
and APPINDICATOR_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

I tried a lot and searched via google for an answer but I didn't find one.
I installed and reinstalled appindicator3-0.1, but it didn't help.
Then i saw that appindicator is installed in /usr/lib/pyshared/python2.6 and /usr/lib/pyshared/python2.7 and sensors indicator has only searched in /usr/bin (or is that wrong?)
Can anybody help me?
-> Sorry for mistakes, but i can't read what i wrote because the font size is very small and my browser underlines/crosses out everything in red because it wants to see german :P
Thanks for helping me.