Ubuntu 12.04上的Android SDK 23.02对所有工具均产生“无此文件或目录”错误

我下载了Android SDK r23.02，并将其解压缩到目录/ home / aleph / SoftwareDevelopment / android-sdk-linux。每当我尝试执行提供的任何工具可执行文件时，都会出现错误“没有这样的文件或目录”。

aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ uname -a
Linux Xanadu 3.11.0-26-generic #45~precise1-Ubuntu SMP Tue Jul 15 04:02:35 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ pwd
/home/aleph/SoftwareDevelopment/android-sdk-linux
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ build-tools/21.1.0/aapt
bash: build-tools/21.1.0/aapt: No such file or directory
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ ls -l build-tools/21.1.0/aapt 
-rwxrwxr-x 1 aleph aleph 1248409 Nov  5 15:43 build-tools/21.1.0/aapt
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ platform-tools/adb 
bash: platform-tools/adb: No such file or directory
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ ls -l platform-tools/adb
-rwxrwxr-x 1 aleph aleph 1318951 Nov  5 15:43 platform-tools/adb
aleph@Xanadu:~/SoftwareDevelopment/android-sdk-linux$ 

我还使用Eclipse ADT捆绑包尝试了此操作，并且遇到了同样的问题。任何帮助，将不胜感激。