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Tricks and tips for debugging Archway projects.

Debug the developer CLI

Sometimes the CLI panics inside of a Node.js thread and exits with a nondescript error message. You can trace the actual source of the error by setting DEBUG=*


DEBUG=* archway deploy --args '{ "name": "debugger", "symbol": "dbg!", "minter": "archway1f395p0gg67mmfd5zcqvpnp9cxnu0hg6r9hfczq" }'

Debug failing transactions

If your transaction is failing use the cargo schema command to regenerate schema requirements for your project. The generated files will explain exactly what keys, types and values are permissible for entrypoints of the contract.


$ cargo schema
Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Running `target/debug/examples/schema`
Removing "/home/user/projects/increment-project/schema/state.json"
Removing "/home/user/projects/increment-project/query_msg.json"
Removing "/home/user/projects/increment-project/instantiate_msg.json"
Removing "/home/user/projects/increment-project/count_response.json"
Removing "/home/user/projects/increment-project/execute_msg.json"
Created /home/user/projects/increment-project/instantiate_msg.json
Created /home/user/projects/increment-project/execute_msg.json
Created /home/user/projects/increment-project/query_msg.json
Created /home/user/projects/increment-project/state.json
Created /home/user/projects/increment-project/count_response.json

Now you can print the regenerated schema for instantiate_msg to see what are the type and format requirements for your particular instantiation.


$ cat schema/instantiate_msg.json
"$schema": "",
"title": "InstantiateMsg",
"type": "object",
"required": [
"properties": {
"count": {
"type": "integer",
"format": "int32"

The above schema tells us we should be sending arguments to the deployer in the format --args '{"count":0}'. For example, sending them as --args '{"count":"0"}' will fail.