matlab 打开后就显示的warning,要怎么解决

matlab 打开后就显示的warning,要怎么解决
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

依次单击
file
set path
default
确定就可以了
再问： 点set path后显示??? Undefined function or variable 'pathtool'.
再答： 额 连pathtool这个文件也找不到了啊 试一试 restoredefaultpath;matlabrc
再问： 太强大了，但是重启软件后有不行了