Connect Metamask to Kovan Testnet Or Localhost 7545 running a custom RPC like Ganache

[staminna]

Dear devpavan

I followed all the instructions successfully but the following error shows:

CRYPTO BOYS CONTRACT NOT DEPLOYED TO THIS NETWORK.
Connect Metamask to Kovan Testnet Or Localhost 7545 running a custom RPC like Ganache.

Here is the truffle test:

Compiling your contracts...
===========================
✔ Fetching solc version list from solc-bin. Attempt #1
> Compiling ./src/contracts/CryptoBoys.sol
> Compiling ./src/contracts/ERC721.sol
> Compiling ./src/contracts/Migrations.sol
> Artifacts written to /var/folders/bw/3p5s80wx4j9317z2v18mf3d00000gn/T/test--35348-0C4qIofrLlt0
> Compiled successfully using:
   - solc: 0.7.6+commit.7338295f.Emscripten.clang



  Contract: Crypto Boys
    Deployment
      ✓ contract has an address
      ✓ has a name (224ms)
      ✓ has a symbol
    application features
      ✓ allows users to mint ERC721 token (2547ms)
      ✓ returns address of the token's owner
      ✓ returns metadata of a token
      ✓ returns total number of tokens minted so far
      ✓ returns total number of tokens owned by an address
      ✓ allows users to buy token for specified ethers (965ms)
      ✓ allows users to change token price (628ms)
      ✓ allows users to toggle between setting the token for sale or not for sale (391ms)


  11 passing (6s)

[staminna]

I added a private key to MetaMask and I have 100 ETH, but the initial problem is the same.

"CRYPTO BOYS CONTRACT NOT DEPLOYED TO THIS NETWORK.
Connect Metamask to Kovan Testnet Or Localhost 7545 running a custom RPC like Ganache".

curl -X POST --data '{"jsonrpc":"2.0","method":"net_version","params":[],"id":67}' localhost:8545

{"id":67,"jsonrpc":"2.0","result":"1337"}

[WangGuaGua1023]

Hi, sir. I need help.
I have do all the steps in the spe. when I view cryptoboys, I meet erros.

Unhandled Rejection (TypeError): Failed to fetch
_callee5$
D:/git/cryptoboys-nft-marketplace/src/components/App.js:157
154 |
155 | setMetaData = async () => {
156 | if (this.state.cryptoBoys.length !== 0) {

157 | this.state.cryptoBoys.map(async (cryptoboy) => {
| ^ 158 | const result = await fetch(cryptoboy.tokenURI);
159 | const metaData = await result.json();
160 | this.setState({
View compiled
▶ 7 stack frames were collapsed.
(anonymous function)
D:/git/cryptoboys-nft-marketplace/src/components/App.js:157
154 |
155 | setMetaData = async () => {
156 | if (this.state.cryptoBoys.length !== 0) {
157 | this.state.cryptoBoys.map(async (cryptoboy) => {
| ^ 158 | const result = await fetch(cryptoboy.tokenURI);
159 | const metaData = await result.json();
160 | this.setState({
View compiled
_callee6$
D:/git/cryptoboys-nft-marketplace/src/components/App.js:157
154 |
155 | setMetaData = async () => {
156 | if (this.state.cryptoBoys.length !== 0) {
157 | this.state.cryptoBoys.map(async (cryptoboy) => {
| ^ 158 | const result = await fetch(cryptoboy.tokenURI);
159 | const metaData = await result.json();
160 | this.setState({
View compiled
▶ 7 stack frames were collapsed.
_callee$
D:/git/cryptoboys-nft-marketplace/src/components/App.js:45
42 | };
43 | }
44 |
45 | componentWillMount = async () => {
| ^ 46 | await this.loadWeb3();
47 | await this.loadBlockchainData();
48 | await this.setMetaData();