这样的错误怎样解决??/?????
在运行有以下三类出错的信息
1.EVariantTypeCastError with message could not convert variant of type (NULL)into type(string);
2.Access violation at address 00404809 in module Project1.exe;
3 Access violation at address 401075B9 in module 'vcl60.bpl';
有谁遇到类似的错误请给出解决的思路;