I can't properly add a testnet

Developer Discussion
1

I try to add a test network to test my dapp but can’t add the test network correctly

The console also reported an error

what do I do? please help me

2

具体是添加一个测试网络都无法实现，控制台也会报错

3

Hi @861980236 ,

Welcome to the MetaMask community! What test net are you trying to add?

Thanks!

4

What error do you get when you try to add the test network?