"libraryComplier" app can't complie simple matlab code?

When I write a simple program test package, the following error will appear, how to solve it? My myadd function is:

function sum =myadd(x,y)

sum = x+y;

error log: mcc -W cpplib:myadd -T link:lib -d D:\Matlab_files\fitcircle\myadd\for_testing -v D:\Matlab_files\fitcircle\myadd.m Compiler version: 6.5 (R2017b)

Dependency analysis by REQUIREMENTS.

Unexpected error while determining required deployable files. Compilation terminated. Details: 错误使用 matlab.depfun.internal.database.SqlDbConnector/doSql Received exception upon attempting an operation. Exception: [The database <file:C%3A%5CProgram%20Files%5CMATLAB%5CR2017b%5Ctoolbox%5Cmatlab%5Cdepfun%5C%2Bmatlab%5C%2Bdepfun%5C%2Binternal%5Crequirements%5Fwin64%5Fdfdb?mode=ro> is corrupt. (database disk image is malformed)]. Details: [SELECT Name FROM Target WHERE ID IN (SELECT DISTINCT Target FROM Component_Path_Item)]. 出错 matlab.depfun.internal.SearchPath/read_targets_from_database (line 508) db.doSql(query); 出错 matlab.depfun.internal.SearchPath (line 872) s.KnownTargets = read_targets_from_database(s); 出错 matlab.depfun.internal.requirements (line 141) s = matlab.depfun.internal.SearchPath('MCR', varargin{2:end}); 出错 matlab.depfun.internal.mcc_call_requirements (line 8) [parts, resources, exclusions] = matlab.depfun.internal.requirements(items, varargin{:});

mcc 失败。

Answer 1

[Gowtham Uma Maheswari Jaganathan]

The error message indicates there could some file corruption that could have happened on your machine. You can try

1. Rehashing toolbox https://www.mathworks.com/help/matlab/ref/rehash.html

2. Try reinstalling MATLAB on your machine, so that you can have all the files without any corruption.

I hope this helps.