matlab问题 MATLAB Toolbox Path Cache is out of date and is not

matlab问题 MATLAB Toolbox Path Cache is out of date and is not being used.
Warning:MATLAB Toolbox Path Cache is out of date and is not being used.
Type 'help toolbox_path_cache' for more info.
Warning:MATLAB did not appear to successfully set the search path.To avoid this
warning the next time you start MATLAB,use
to help troubleshoot the "pathdef.m" file.To recover for this session
of MATLAB,type "restoredefaultpath;matlabrc".
Warning:Duplicate directory name:E:\matlab\toolbox\local.