How serious is this failure during ADT (DDMS - Dalvik Debug Monitor Server) for Eclipse installation on Dell hardware running Ubuntu 11.10 with Xfce4.

http://www.edumobile.org/android/android-tutorial/what-is-ddms-and-how-it-works/

[2012-07-31 15:52:47 - adb] /home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64
[2012-07-31 15:52:47 - adb] 'adb version' failed!
/home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64
[2012-07-31 15:52:47 - adb] Failed to parse the output of 'adb version':
Standard Output was:

Error Output was:
/home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64

[2012-07-31 15:52:48 - adb] /home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64
[2012-07-31 15:52:48 - adb] 'adb version' failed!
/home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64
[2012-07-31 15:52:48 - adb] Failed to parse the output of 'adb version':
Standard Output was:

Error Output was:
/home/advo/android-sdks/platform-tools/adb: error while loading shared libraries: libncurses.so.5: wrong ELF class: ELFCLASS64