基本的な質問で申し訳ありませんが、契約を展開するために他に何が必要ですか?
HelloWorld.sol のように定義された単純な Hello World コントラクトがあります。
pragma solidity ^0.4.17;
contract HelloWorld{
function sayHello() internal pure returns(string){
return("Hello 2018!");
}
}
最初の migrations.js:
var Migrations = artifacts.require("./Migrations.sol");
var HelloWorld = artifacts.require("./HelloWorld.sol");
module.exports = function(deployer) {
deployer.deploy(Migrations);
deployer.deploy(HelloWorld);
};
そして最後に、トリュフを使用しているので、truffle.js:
module.exports = {
networks: {
development: {
host: "localhost",
port: 8545,
network_id: "*" // Match any network id
}
}
};
コマンドを実行すると:
truffle compile
truffle migrate
次に、コンソールに移動します。
truffle console
そして私はjsを使用します：
var hw
HelloWorld.deployed().then(function(deployed){hw=deployed;});
私は得る
エラー: HelloWorld は、プロセスで C:\Users\Kofola\AppData\Roaming\npm\node_modules\truffle\build\cli.bundled.js:317116:17 で検出されたネットワーク (ネットワーク/アーティファクトの不一致) にデプロイされていません。 (内部/プロセス/next_tick.js:228:7)
コントラクトを正しくデプロイし、そのメソッドをテストするにはどうすればよいですか?
また、testrpc サーバーは 8545 で実行されており、すべて問題ないようです。（これはすべてlocalhostで実行されています）ネットワークのIDを指定しようとしましたが、IDを明示的に設定し、truffle.jsで指定しましたが、まだ機能していません。また、関数の可視性を変更しようとしました。
「トリュフコマンドの出力」を編集します。
契約の詳細:
望ましい結果へのコンソール出力トレイル:
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle compile
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle migrate
Using network 'development'.
Network up to date.
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle console
truffle(development)> var hw
undefined
truffle(development)> HelloWorld.deployed().then(function(deployed){hw=deployed;});
undefined
truffle(development)> hw.sayHello.call()
''
truffle(development)> hw.SayHello.call()
TypeError: Cannot read property 'call' of undefined
at evalmachine.<anonymous>:1:13
at ContextifyScript.Script.runInContext (vm.js:59:29)
at Object.runInContext (vm.js:120:6)
at Console.interpret (C:\Users\Kofola\AppData\Roaming\npm\node_modules\truffle\build\cli.bundled.js:202629:17)
at ReplManager.interpret (C:\Users\Kofola\AppData\Roaming\npm\node_modules\truffle\build\cli.bundled.js:203345:18)
at bound (domain.js:301:14)
at REPLServer.runBound [as eval] (domain.js:314:12)
at REPLServer.onLine (repl.js:441:10)
at emitOne (events.js:116:13)
at REPLServer.emit (events.js:211:7)
truffle(development)> hw.sayHello.call()
''
truffle(development)> .exit
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle migrate --reset
Could not connect to your Ethereum client. Please check that your Ethereum client:
- is running
- is accepting RPC connections (i.e., "--rpc" option is used in geth)
- is accessible over the network
- is properly configured in your Truffle configuration file (truffle.js)
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle compile
Compiling .\contracts\HelloWorld.sol...
Compiling .\contracts\Migrations.sol...
Compilation warnings encountered:
/C/Users/Kofola/BlockChain/EthereumHelloWorld/contracts/HelloWorld.sol:5:5: Warning: No visibility specified. Defaulting to "public".
function sayHello() returns(string){
^
Spanning multiple lines.
,/C/Users/Kofola/BlockChain/EthereumHelloWorld/contracts/HelloWorld.sol:5:5: Warning: Function state mutability can be restricted to pure
function sayHello() returns(string){
^
Spanning multiple lines.
Writing artifacts to .\build\contracts
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle migrate --reset
Using network 'development'.
Running migration: 1_initial_migration.js
Deploying Migrations...
... 0x1ed08bc4bcbb9db244acd9edfe4cfc71ca1675d069e4f17dcb5780f1ae496da0
Migrations: 0x2bcb6d8aade2239b14c17374d631be59c2847175
Deploying HelloWorld...
... 0x0195732cdb2a7fae8896be02a86403c88fd45c5e793a0ab1de7b3fdf6a086a67
HelloWorld: 0xf169c021288e56a0b9739fd959fe305a7f67f500
Saving successful migration to network...
... 0xed919bb06a5a83fbf7e8bae8b99ec2f398979b51bc3f41c152ef621e1c799561
Saving artifacts...
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle migrate
Using network 'development'.
Network up to date.
PS C:\Users\Kofola\BlockChain\EthereumHelloWorld> truffle console
truffle(development)> var hw = HelloWorld.at(HelloWorld.address);
undefined
truffle(development)> hw.address
'0xf169c021288e56a0b9739fd959fe305a7f67f500'
truffle(development)> hw.sayHello();
{ tx: '0x694a532cffb398dd316c53c6ac44adde7d8a7c00e305bcd8b39746fb3d20acdc',
receipt:
{ transactionHash: '0x694a532cffb398dd316c53c6ac44adde7d8a7c00e305bcd8b39746fb3d20acdc',
transactionIndex: 0,
blockHash: '0xdfd7a8637904ec0ed282acac34e2da4929f410325f7f37744955ce5b3195cc8b',
blockNumber: 4,
gasUsed: 21934,
cumulativeGasUsed: 21934,
contractAddress: null,
logs: [],
status: 1 },
logs: [] }
truffle(development)> hw
TruffleContract {
constructor:
{ [Function: TruffleContract]
_static_methods:
{ setProvider: [Function: setProvider],
new: [Function: new],
at: [Function: at],
deployed: [Function: deployed],
defaults: [Function: defaults],
hasNetwork: [Function: hasNetwork],
isDeployed: [Function: isDeployed],
detectNetwork: [Function: detectNetwork],
setNetwork: [Function: setNetwork],
resetAddress: [Function: resetAddress],
link: [Function: link],
clone: [Function: clone],
addProp: [Function: addProp],
toJSON: [Function: toJSON] },
_properties:
{ contract_name: [Object],
contractName: [Object],
abi: [Object],
network: [Function: network],
networks: [Function: networks],
address: [Object],
links: [Function: links],
events: [Function: events],
binary: [Function: binary],
deployedBinary: [Function: deployedBinary],
unlinked_binary: [Object],
bytecode: [Object],
deployedBytecode: [Object],
sourceMap: [Object],
deployedSourceMap: [Object],
source: [Object],
sourcePath: [Object],
ast: [Object],
compiler: [Object],
schema_version: [Function: schema_version],
schemaVersion: [Function: schemaVersion],
updated_at: [Function: updated_at],
updatedAt: [Function: updatedAt] },
_property_values: {},
_json:
{ contractName: 'HelloWorld',
abi: [Array],
bytecode: '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',
deployedBytecode: '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',
sourceMap: '28:114:0:-;;;;;;;;;;;;;;;;;',
deployedSourceMap: '28:114:0:-;;;;;;;;;;;;;;;;;;;;;;;;62:75;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;23:1:-1;8:100;33:3;30:1;27:2;8:100;;;99:1;94:3;90;84:5;80:1;75:3;71;64:6;52:2;49:1;45:3;40:15;;8:100;;;12:14;3:109;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;62:75:0;90:6;;:::i;:::-;108:21;;;;;;;;;;;;;;;;;;;;62:75;:::o;28:114::-;;;;;;;;;;;;;;;:::o',
source: 'pragma solidity ^0.4.17;\r\n\r\ncontract HelloWorld{ \r\n \r\n function sayHello() returns(string){\r\n return("Hello 2018!");\r\n
}\r\n\r\n}',
sourcePath: 'C:\\Users\\Kofola\\BlockChain\\EthereumHelloWorld\\contracts\\HelloWorld.sol',
ast: [Object],
compiler: [Object],
networks: [Object],
schemaVersion: '1.0.1',
updatedAt: '2017-12-31T19:58:12.425Z' },
setProvider: [Function: bound setProvider],
new: [Function: bound new],
at: [Function: bound at],
deployed: [Function: bound deployed],
defaults: [Function: bound defaults],
hasNetwork: [Function: bound hasNetwork],
isDeployed: [Function: bound isDeployed],
detectNetwork: [Function: bound detectNetwork],
setNetwork: [Function: bound setNetwork],
resetAddress: [Function: bound resetAddress],
link: [Function: bound link],
clone: [Function: bound clone],
addProp: [Function: bound addProp],
toJSON: [Function: bound toJSON],
web3:
Web3 {
_requestManager: [Object],
currentProvider: [Object],
eth: [Object],
db: [Object],
shh: [Object],
net: [Object],
personal: [Object],
bzz: [Object],
settings: [Object],
version: [Object],
providers: [Object],
_extend: [Object] },
class_defaults:
{ from: '0x848375e1f2447bee3257b9afcac99af09d83f9f0',
gas: 6721975,
gasPrice: 100000000000 },
currentProvider:
HttpProvider {
host: 'http://localhost:8545',
timeout: 0,
user: undefined,
password: undefined,
send: [Function],
sendAsync: [Function],
_alreadyWrapped: true },
network_id: '1001' },
abi:
[ { constant: false,
inputs: [],
name: 'sayHello',
outputs: [Array],
payable: false,
stateMutability: 'nonpayable',
type: 'function' } ],
contract:
Contract {
_eth:
Eth {
_requestManager: [Object],
getBalance: [Object],
getStorageAt: [Object],
getCode: [Object],
getBlock: [Object],
getUncle: [Object],
getCompilers: [Object],
getBlockTransactionCount: [Object],
getBlockUncleCount: [Object],
getTransaction: [Object],
getTransactionFromBlock: [Object],
getTransactionReceipt: [Object],
getTransactionCount: [Object],
call: [Object],
estimateGas: [Object],
sendRawTransaction: [Object],
signTransaction: [Object],
sendTransaction: [Object],
sign: [Object],
compile: [Object],
submitWork: [Object],
getWork: [Object],
coinbase: [Getter],
getCoinbase: [Object],
mining: [Getter],
getMining: [Object],
hashrate: [Getter],
getHashrate: [Object],
syncing: [Getter],
getSyncing: [Object],
gasPrice: [Getter],
getGasPrice: [Object],
accounts: [Getter],
getAccounts: [Object],
blockNumber: [Getter],
getBlockNumber: [Object],
protocolVersion: [Getter],
getProtocolVersion: [Object],
iban: [Object],
sendIBANTransaction: [Function: bound transfer] },
transactionHash: null,
address: '0xf169c021288e56a0b9739fd959fe305a7f67f500',
abi: [ [Object] ],
sayHello:
{ [Function: bound ]
request: [Function: bound ],
call: [Function: bound ],
sendTransaction: [Function: bound ],
estimateGas: [Function: bound ],
getData: [Function: bound ],
'': [Circular] },
allEvents: [Function: bound ] },
sayHello:
{ [Function]
call: [Function],
sendTransaction: [Function],
request: [Function: bound ],
estimateGas: [Function] },
sendTransaction: [Function],
send: [Function],
allEvents: [Function: bound ],
address: '0xf169c021288e56a0b9739fd959fe305a7f67f500',
transactionHash: null }
truffle(development)>
(To exit, press ^C again or type .exit)
truffle(development)> hw.sayHello.call()
'Hello 2018!'
truffle(development)>
解決策：同じ問題を抱えている可能性がある人は、受け入れられた回答からコメントを読んですべての情報を入手してください。
それを実行するコマンドを含む作業コード: https://github.com/TomasBiciak/EthereumHelloWorldExample