Troubleshooting

Solutions to common issues when using the Opinion CLOB SDK.

Installation Issues

ImportError: No module named 'opinion_clob_sdk'

Problem:

import opinion_clob_sdk
# ModuleNotFoundError: No module named 'opinion_clob_sdk'

Solutions:

Install the SDK:
```
pip install opinion_clob_sdk
```

Verify installation:

pip list | grep opinion
python -c "import opinion_clob_sdk; print(opinion_clob_sdk.__version__)"

Check Python environment:

which python  # Ensure correct Python interpreter
which pip     # Ensure pip matches Python

Use virtual environment:

python3 -m venv venv
source venv/bin/activate
pip install opinion_clob_sdk

Dependency Conflicts

Problem:

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed.
This behaviour is the source of the following dependency conflicts.

Solutions:

Create fresh virtual environment:

python3 -m venv fresh_env
source fresh_env/bin/activate
pip install opinion_clob_sdk

Upgrade pip:

pip install --upgrade pip setuptools wheel

Force reinstall:

pip install --force-reinstall opinion_clob_sdk

Configuration Issues

InvalidParamError: chain_id must be 56

Problem:

client = Client(chain_id=1, ...)
# InvalidParamError: chain_id must be 56

Solution: Use BNB Chain Mainnet 56

# ✓ BNB CHain Mainnet
client = Client(
    chain_id=56,
    rpc_url='___',
    ...
)

Missing Environment Variables

Problem:

apikey=os.getenv('API_KEY')
# TypeError: Client.__init__() argument 'apikey' must be str, not None

Solutions:

Create .env file:

# .env
API_KEY=your_api_key_here
RPC_URL=___
PRIVATE_KEY=0x...
MULTI_SIG_ADDRESS=0x...

Load environment variables:

from dotenv import load_dotenv
import os

load_dotenv()  # Load .env file

# Verify loaded
print(os.getenv('API_KEY'))  # Should not be None

Provide defaults:

apikey = os.getenv('API_KEY')
if not apikey:
    raise ValueError("API_KEY environment variable not set")

API Errors

OpenApiError: errno != 0

Problem:

response = client.get_market(99999)
if response.errno != 0:
    print(response.errmsg)  # "Market not found"

Solutions:

Always check errno:

response = client.get_market(market_id)

if response.errno == 0:
    # Success
    market = response.result.data
else:
    # Handle error
    print(f"Error {response.errno}: {response.errmsg}")

Common errno codes:
Code
Meaning
Solution
0
Success
Proceed with result
404
Not found
Check ID exists
400
Bad request
Check parameters
401
Unauthorized
Check API key
500
Server error
Retry later or contact support

Wrap in try-except:

try:
    response = client.get_market(market_id)
    if response.errno == 0:
        market = response.result.data
    else:
        logging.error(f"API error: {response.errmsg}")
except OpenApiError as e:
    logging.error(f"API communication error: {e}")

InvalidParamError: market_id is required

Problem:

client.get_market(market_id=None)
# InvalidParamError: market_id is required

Solution: Always provide required parameters:

# ✗ Bad
market = client.get_market(None)

# ✓ Good
market_id = 123
if market_id:
    market = client.get_market(market_id)

Trading Errors

InvalidParamError: Price must be positive for limit orders

Problem:

order = PlaceOrderDataInput(
    orderType=LIMIT_ORDER,
    price="0",  # ✗ Invalid for limit orders
    ...
)

Solution: Set valid price for limit orders:

# ✓ Limit order with price
order = PlaceOrderDataInput(
    orderType=LIMIT_ORDER,
    price="0.55",  # Must be > 0
    ...
)

# ✓ Market order with price = 0
order = PlaceOrderDataInput(
    orderType=MARKET_ORDER,
    price="0",  # OK for market orders
    ...
)

InvalidParamError: makerAmountInBaseToken is not allowed for market buy

Problem:

order = PlaceOrderDataInput(
    side=OrderSide.BUY,
    orderType=MARKET_ORDER,
    makerAmountInBaseToken="100"  # ✗ Not allowed
)

Solution: Use correct amount field:

Market BUY:

# ✓ Use makerAmountInQuoteToken
order = PlaceOrderDataInput(
    side=OrderSide.BUY,
    orderType=MARKET_ORDER,
    price="0",
    makerAmountInQuoteToken="100"  # ✓ Spend 100 USDT
)

Market SELL:

# ✓ Use makerAmountInBaseToken
order = PlaceOrderDataInput(
    side=OrderSide.SELL,
    orderType=MARKET_ORDER,
    price="0",
    makerAmountInBaseToken="50"  # ✓ Sell 50 tokens
)

InvalidParamError: makerAmountInQuoteToken must be at least 1

Problem:

order = PlaceOrderDataInput(
    makerAmountInQuoteToken="0.5",  # ✗ Below minimum
    ...
)

Solution: Use minimum amount of 1:

# ✓ Minimum amounts
order = PlaceOrderDataInput(
    makerAmountInQuoteToken="1",  # ✓ At least 1 USDT
    # or
    makerAmountInBaseToken="1",   # ✓ At least 1 token
    ...
)

Blockchain Errors

BalanceNotEnough

Problem:

client.split(market_id=123, amount=100_000000)
# BalanceNotEnough: Insufficient balance for operation

Solutions:

Check balance:

balances = client.get_my_balances().result.data
usdt = next((b for b in balances if 'usdt' in b.token.lower()), None)

if usdt:
    balance_wei = int(usdt.amount)
    balance_usdt = balance_wei / 1e6  # Convert from wei
    print(f"USDT balance: ${balance_usdt}")

    amount_to_split = 10 * 1e18  # 10 USDT
    if balance_wei >= amount_to_split:
        client.split(market_id=123, amount=int(amount_to_split))
    else:
        print("Insufficient balance")

For merge - need both outcome tokens:

positions = client.get_my_positions().result.list
yes_pos = next((p for p in positions if p.token_id == 'token_yes'), None)
no_pos = next((p for p in positions if p.token_id == 'token_no'), None)

if yes_pos and no_pos:
    # Can only merge min of both
    merge_amount = min(int(yes_pos.amount), int(no_pos.amount))
    client.merge(market_id=123, amount=merge_amount)

InsufficientGasBalance

Problem:

client.enable_trading()
# InsufficientGasBalance: Not enough ETH for gas fees

Solution: Add ETH to signer wallet:

# 1. Check signer address
signer_addr = client.contract_caller.signer.address()
print(f"Signer address: {signer_addr}")

# 2. Check ETH balance
from web3 import Web3
w3 = Web3(Web3.HTTPProvider(rpc_url))
balance = w3.eth.get_balance(signer_addr)
balance_eth = balance / 1e18

print(f"BNB balance: {balance_bnb}")

# 3. If balance low, send BNB to signer_addr
# Usually $1-5 worth of BNB is enough for many transactions

Problem:

web3.exceptions.ContractLogicError: execution reverted

Common Causes:

Insufficient approval:

# Solution: Enable trading
client.enable_trading()
# Then retry operation

Insufficient balance: Check balance before operation (see BalanceNotEnough above)

Gas price too low:

# Usually handled automatically
# If issues persist, try increasing gas

Contract state changed:

# Market may have resolved or status changed
# Refresh market data
market = client.get_market(market_id, use_cache=False)

Performance Issues

Too Many API Calls

Problem: Hitting rate limits.

Solutions:

Use caching:

# Don't disable cache unless necessary
client = Client(market_cache_ttl=300, ...)  # Enable caching

Fetch once, use multiple times:

# ✗ Bad: Multiple calls for same data
for i in range(10):
    market = client.get_market(123)
    process(market)

# ✓ Good: Fetch once
market = client.get_market(123)
for i in range(10):
    process(market)

Paginate efficiently:

# Fetch all markets efficiently
all_markets = []
page = 1
limit = 20  # Max allowed

while True:
    response = client.get_markets(page=page, limit=limit)
    if response.errno != 0:
        break

    markets = response.result.list
    all_markets.extend(markets)

    if len(markets) < limit:  # Last page
        break

    page += 1

Data Issues

Precision Errors

Problem:

amount = 10.5 * 1e18  # Float precision issues
# 105000000000000000000.0 instead of exact 105000000000000000000

Solution: Use safe_amount_to_wei():

from opinion_clob_sdk.sdk import safe_amount_to_wei

# ✓ Exact conversion using Decimal
amount_wei = safe_amount_to_wei(10.5, 18)  # Returns int: 105000000000000000000

client.split(market_id=123, amount=amount_wei)

Type Mismatch

Problem:

order = PlaceOrderDataInput(
    price=0.55,  # ✗ Float instead of string
    ...
)

Solution: Use correct types:

# ✓ Correct types
order = PlaceOrderDataInput(
    marketId=123,              # int
    tokenId="token_yes",       # str
    side=OrderSide.BUY,        # int (enum)
    orderType=LIMIT_ORDER,     # int
    price="0.55",              # str ✓
    makerAmountInQuoteToken="100"  # str
)

Authentication Issues

401 Unauthorized

Problem:

HTTPError: 401 Client Error: Unauthorized

Solutions:

Check API key:

import os
apikey = os.getenv('API_KEY')
print(f"API Key: {apikey[:10]}...")  # Print first 10 chars

if not apikey or apikey == 'your_api_key_here':
    print("Invalid API key")

Verify key format:

# Should look like:
# opn_prod_abc123xyz789 (production)
# opn_dev_abc123xyz789 (development)

Contact support: If key is correct but still failing, contact [email protected]

Private Key Issues

Problem:

ValueError: Private key must be exactly 32 bytes long

Solutions:

Check format:

# ✓ Valid formats
private_key = "0x1234567890abcdef..."  # With 0x prefix (64 hex chars)
private_key = "1234567890abcdef..."    # Without 0x prefix (64 hex chars)

# ✗ Invalid
private_key = "0x123"  # Too short
private_key = 12345    # Not a string

Verify length:

pk = os.getenv('PRIVATE_KEY')
if pk.startswith('0x'):
    pk = pk[2:]  # Remove 0x prefix

if len(pk) != 64:
    print(f"Invalid private key length: {len(pk)} (expected 64)")

Debug Tips

Enable Logging

import logging

# Set to DEBUG for detailed logs
logging.basicConfig(
    level=logging.DEBUG,
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
)

# Now all SDK operations will log details
client = Client(...)

Inspect Responses

import json

response = client.get_market(123)

# Pretty print response
print(json.dumps(response.to_dict(), indent=2))

Check SDK Version

import opinion_clob_sdk
print(f"SDK Version: {opinion_clob_sdk.__version__}")

# Check dependencies
import web3
import eth_account
print(f"Web3 version: {web3.__version__}")
print(f"eth_account version: {eth_account.__version__}")

Verify Network Connection

# Test RPC connection
from web3 import Web3

w3 = Web3(Web3.HTTPProvider(rpc_url))
print(f"Connected: {w3.is_connected()}")
print(f"Chain ID: {w3.eth.chain_id}")
print(f"Latest block: {w3.eth.block_number}")

Getting Help

If you're still experiencing issues:

Check FAQ: Frequently Asked Questions
Join Discord Dev Channel

When reporting issues, include:

SDK version
Python version
Full error traceback
Minimal code to reproduce
Expected vs actual behavior

PreviousFAQ NextAudit Report

Last updated 2 months ago

hashtagInstallation Issues

hashtagImportError: No module named 'opinion_clob_sdk'

hashtagDependency Conflicts

hashtagConfiguration Issues

hashtagInvalidParamError: chain_id must be 56

hashtagMissing Environment Variables

hashtagAPI Errors

hashtagOpenApiError: errno != 0

hashtagInvalidParamError: market_id is required

hashtagTrading Errors

hashtagInvalidParamError: Price must be positive for limit orders

hashtagInvalidParamError: makerAmountInBaseToken is not allowed for market buy

hashtagInvalidParamError: makerAmountInQuoteToken must be at least 1

hashtagBlockchain Errors

hashtagBalanceNotEnough

hashtagInsufficientGasBalance

hashtagPerformance Issues

hashtagToo Many API Calls

hashtagData Issues

hashtagPrecision Errors

hashtagType Mismatch

hashtagAuthentication Issues

hashtag401 Unauthorized

hashtagPrivate Key Issues

hashtagDebug Tips

hashtagEnable Logging

hashtagInspect Responses

hashtagCheck SDK Version

hashtagVerify Network Connection

hashtagGetting Help

Installation Issues

ImportError: No module named 'opinion_clob_sdk'

Dependency Conflicts

Configuration Issues

InvalidParamError: chain_id must be 56

Missing Environment Variables

API Errors

OpenApiError: errno != 0

InvalidParamError: market_id is required

Trading Errors

InvalidParamError: Price must be positive for limit orders

InvalidParamError: makerAmountInBaseToken is not allowed for market buy

InvalidParamError: makerAmountInQuoteToken must be at least 1

Blockchain Errors

BalanceNotEnough

InsufficientGasBalance

Performance Issues

Too Many API Calls

Data Issues

Precision Errors

Type Mismatch

Authentication Issues

401 Unauthorized

Private Key Issues

Debug Tips

Enable Logging

Inspect Responses

Check SDK Version

Verify Network Connection

Getting Help