求吧内大神救助

#include<iostream>
#include<string>
#include<cstring>
int main()
{
using namespace std;
char charr1[20];
char charr2[20] = "jaguar";
string str1;
string str2 = "panther";
str1 = str2;
strcpy(charr1,charr2);
str1 += " paste";
strcat(charr1, " juice");
int len1 = str1.size();
int len2 = strlen(charr1);
cout << "The string " << str1 << " contains " << len1 << " characters.\n";
cout << "The string " << charr1 << " contains " << len2 << " characters.\n";
cin.get();
return 0;
}
程序在strcpy这里出错了，无法运行，我用的是VS2013