symbolic math toolbox installed but it does not work

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Lucie Taj
Lucie Taj on 12 Sep 2019
Commented: Xiliang YIN on 2 Mar 2020
hi, i need to switch to matlab to solve some symbolic problems. i have the symbolic math toolbox installed. i even unistalled and installed again but nothing helps to make it working. when i just simply do syms x - i get this error (below)- maybe missing something in my installation? any idea? i have windows 7
Error using sym (line 186)
Invalid MEX-file 'C:\Program Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64': Missing dependent
shared libraries:
'maplecr.dll' required by 'C:\Program Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
'icudt61.dll' required by 'C:\Program Files\MATLAB\R2019a/bin/win64\icuuc61.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\icuin61.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwi18n.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'FileTimeToSystemTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-File-L1-1-0.dll' required by
'C:\Windows\system32\msvcrt.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'GetTimeZoneInformation' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\msvcrt.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'SystemTimeToFileTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\msvcrt.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'OpenProcess' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-Synch-L1-1-0.dll' required by
'C:\Windows\system32\dbghelp.dll->C:\Program Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'OpenProcess' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-Synch-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'FileTimeToSystemTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-File-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'GetNamedPipeAttribute' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-NamedPipe-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'SystemTimeToTzSpecificLocalTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'TzSpecificLocalTimeToSystemTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'GetDynamicTimeZoneInformation' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'GetTimeZoneInformationForYear' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'SystemTimeToFileTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'GetTimeZoneInformation' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\KERNEL32.dll->C:\Windows\system32\dbghelp.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'FileTimeToSystemTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-File-L1-1-0.dll' required by
'C:\Windows\system32\RPCRT4.dll->C:\Windows\system32\ADVAPI32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'LoadStringA' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-LibraryLoader-L1-1-0.dll' required by
'C:\Windows\system32\WS2_32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\mwboost_log-vc141-mt-1_65_1.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'LoadStringW' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-LibraryLoader-L1-1-0.dll' required by
'C:\Windows\system32\WS2_32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\mwboost_log-vc141-mt-1_65_1.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'LoadStringW' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-LibraryLoader-L1-1-0.dll' required by
'C:\Windows\system32\ole32.dll->C:\Windows\system32\OLEAUT32.dll->C:\Windows\system32\SETUPAPI.dll->C:\Windows\system32\POWRPROF.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'OpenProcess' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-Synch-L1-1-0.dll' required by
'C:\Windows\system32\ole32.dll->C:\Windows\system32\OLEAUT32.dll->C:\Windows\system32\SETUPAPI.dll->C:\Windows\system32\POWRPROF.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'SystemTimeToFileTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\ole32.dll->C:\Windows\system32\OLEAUT32.dll->C:\Windows\system32\SETUPAPI.dll->C:\Windows\system32\POWRPROF.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwfl.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'OpenProcess' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-Synch-L1-1-0.dll' required by
'C:\Windows\system32\MSWSOCK.dll->C:\Program Files\MATLAB\R2019a/bin/win64\libmwmst.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\mvm.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'FileTimeToSystemTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-File-L1-1-0.dll' required by
'C:\Windows\system32\SHELL32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\settingscore.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'LoadStringW' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-LibraryLoader-L1-1-0.dll' required by
'C:\Windows\system32\SHELL32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\settingscore.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'LoadStringA' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-LibraryLoader-L1-1-0.dll' required by
'C:\Windows\system32\SHELL32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\settingscore.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'OpenProcess' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-Synch-L1-1-0.dll' required by
'C:\Windows\system32\SHELL32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\settingscore.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Missing symbol 'SystemTimeToFileTime' in 'C:\Program
Files\MATLAB\R2019a/bin/win64\API-MS-Win-Core-SysInfo-L1-1-0.dll' required by
'C:\Windows\system32\SHELL32.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\settingscore.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmwservices.dll->C:\Program
Files\MATLAB\R2019a/bin/win64\libmex.dll->C:\Program
Files\MATLAB\R2019a\toolbox\maple\maplemex.mexw64'
Error in syms (line 47)
assignin('caller',varargin{1},sym(varargin{1}));
Error in zk (line 1)
syms x

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Answers (1)

Santhosh A V
Santhosh A V on 29 Jan 2020
Hi Lucie
The error message is received because the 'syms' function from the Symbolic Math Toolbox is shadowed by the 'syms' function from Maple Soft. To resolve this issue execute the following commands at the MATLAB command prompt.
>> restoredefaultpath
>> savepath
Hope the above information helped you.
Thanks
Santhosh
  1 Comment
Xiliang YIN
Xiliang YIN on 2 Mar 2020
hi Santhosh
I met the same problem with Lucie, i use your solution to make it work,however i also need call maple function in matlab, when i call restoredefaultpath command, maple function can not work. when i add maple toolbox path, syms function can not work again. could you please help me. Thanks

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