合同正确时，编制合同会使终端出现错误

Question

当我通过此代码在终端中编译合同

$ node

code = fs.readFileSync('HealthcareContract.sol').toString()

solc = require('solc')

compiledCode = solc.compile(code)

它给出了错误 5：1：错误：状态变量不支持键入“映射（字符串=>字符串）”。\ nmapping（字符串=>字符串）dataLink;

我的合同在混音中工作正常时，如何在终端中正常运行。

pragma solidity ^0.4.11;

contract HDataAccessManager {
	
mapping (string => string) dataLink;
	mapping (string => string) dataHash;
	mapping (string => bytes32) private passwords; 
	string[] users;


	function _isValid(string _user_id, string _encryption_key_hash) returns (bool) {
		for(uint i = 0;i<users.length;i++){
			if(keccak256(users[i]) == keccak256(_user_id) && 
				keccak256(_encryption_key_hash) == passwords[_user_id]) {

				return true;
			}
		}
		return false;
	}

	function addUser(string _user_id, string _encryption_key_hash) {
		users.push(_user_id);
		passwords[_user_id] = keccak256(_encryption_key_hash);
	}

	function totalUsers() returns (uint) {
		return users.length;
	}


	// link is alias of generated_id
	function storeLink(string _user_id, string _link){

		// check if user is present in blockchain
		//require(_isValid(_user_id, _encryption_key_hash));

		dataLink[_user_id] = _link;
	}

	function storeHash(string _user_id, string _hash){

		// check if user is present in blockchain
		//require(_isValid(_user_id, _encryption_key_hash));

		dataHash[_user_id] = _hash;
	}


	function retrieveLink(string _user_id, string _encryption_key_hash) returns (string, string) {

		//check if user is present in blockchain
		require(_isValid(_user_id, _encryption_key_hash));

		string link = dataLink[_user_id];
		string hash = dataHash[_user_id];
		return (link, hash);

}

}