Error: Invalid certificate:

Developers Motoko
1

I’m new user and below error is what I’m getting. Read a post in regard to similar issue but wasn’t able to follow. Not sure what to do next. TIA

“Uncaught (in promise) Error: Invalid certificate: Invalid signature from replica signed query: no matching node key found”

Below is what i have under the package.json:
“devDependencies”: {
“@dfinity/agent”: “1.0.1”,
“@dfinity/candid”: “1.0.1”,
“@dfinity/principal”: “1.0.1”,

DFX.jsonL
“dfx”: “0.9.3”,
“networks”: {
“local”: {
“bind”: “127.0.0.1:8000”,
“type”: “ephemeral”,
“replica”:{
“subnet_type”:“application”
}
}
},

2

The dfx version (read: the replica shipped with dfx 0.9.3) is ridiculously out of date. It is missing quite a lot of features that the agent expects. I suggest you update your dfx version and remove the version pin in dfx.json ("dfx": "0.9.3")