MATLAB启动时报错: pathdef.m not found 问题解决方法

Warning: D:\Program Files\MATLAB\R2010b\toolbox\local\pathdef.m not found.
Toolbox Path Cache is not being used. Type 'help toolbox_path_cache' for more info 
Undefined function or variable 'ispc'.
Warning: MATLAB did not appear to successfully set the search path. To recover for this session of
MATLAB, type "restoredefaultpath;matlabrc". To find out how to avoid this warning the next time you
start MATLAB, type "docsearch problem path" after recovering for this session. 
Warning: Duplicate directory name: D:\Program Files\MATLAB\R2010b\toolbox\local. 
Warning: Initializing Handle Graphics failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function or method 'colordef' for input arguments of type 'double'. 
> In matlabrc at 100
Warning: Initializing Java preferences failed in matlabrc.
This indicates a potentially serious problem in your MATLAB setup,
which should be resolved as soon as possible.  Error detected was:
MATLAB:UndefinedFunction
Undefined function or method 'usejava' for input arguments of type 'char'. 
> In matlabrc at 123
Warning: Failed to add default profiler filters. 
> In matlabrc at 179

解决方法是:


1. 在matlab的command里输入: restoredefaultpath;matlabrc. 回车等待执行完毕.

2. 在Matlab的命令行中，使用cd命令，将工作路径切换至'你的安装目录'\MATLAB\R2011b\toolbox\local.

3. 执行命令 "savepath pathdef.m". 


该问题得到解决, 再次启动MATLAB不会再出现该Warning.

原文章出处：http://www.cnblogs.com/platero/archive/2012/09/15/2686505.html