migrate to SeleniumBase UC Mode for automatic version management

- Replace undetected-chromedriver with seleniumbase for better Chrome/ChromeDriver compatibility
- Automatic version matching eliminates manual cache clearing and version conflicts
- Enhanced anti-detection with UC Mode and CDP stealth settings
- Simplified requirements.txt (SeleniumBase manages common dependencies)
- Fix sort selection bug (was selecting wrong menu items)
- Improve scrolling patience (max_idle: 3→15, max_attempts: 10→50)
- Add scroll position tracking to detect when stuck
- Add fallback pane selectors for better reliability
- Update documentation (README, ARCHITECTURE, TROUBLESHOOTING)
- Add comprehensive test suite for SeleniumBase integration
- Version bump to 1.0.1

Developed by George Khananaev
This commit is contained in:
George Khananaev
2025-12-07 19:40:13 +07:00
parent 6b60b02eec
commit 262f0c0be7
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# Troubleshooting Guide
This guide covers common issues and their solutions when running Google Reviews Scraper Pro.
---
## Table of Contents
1. [Chrome & ChromeDriver Issues](#chrome--chromedriver-issues)
2. [MongoDB Issues](#mongodb-issues)
3. [AWS S3 Issues](#aws-s3-issues)
4. [Scraping Issues](#scraping-issues)
5. [API Server Issues](#api-server-issues)
6. [Image Download Issues](#image-download-issues)
7. [Configuration Issues](#configuration-issues)
8. [Performance Issues](#performance-issues)
9. [Python & Dependencies Issues](#python--dependencies-issues)
---
## Chrome & ChromeDriver Issues
### Issue: ChromeDriver Version Mismatch
**Error Message:**
```
SessionNotCreatedException: Message: session not created: This version of ChromeDriver only supports Chrome version 143
Current browser version is 142.0.7444.176
```
**Cause:** Chrome/ChromeDriver version mismatch (this issue is now automatically handled by SeleniumBase).
**Solution:**
**Good News:** With SeleniumBase UC Mode, version mismatches are automatically resolved!
1. **Update Chrome to latest version:**
- macOS: Open Chrome → Menu → Help → About Google Chrome
- Or run: `open -a "Google Chrome" "chrome://settings/help"`
2. **Upgrade SeleniumBase (if needed):**
```bash
pip install --upgrade seleniumbase
```
3. **Run scraper again** - SeleniumBase automatically downloads the matching ChromeDriver.
---
### Issue: ChromeOptions Reuse Error
**Error Message:**
```
RuntimeError: you cannot reuse the ChromeOptions object
```
**Cause:** Internal error when retrying Chrome initialization.
**Solution:** Clear the ChromeDriver cache (see above) and restart the scraper.
---
### Issue: Chrome Binary Not Found
**Error Message:**
```
WebDriverException: Message: unknown error: cannot find Chrome binary
```
**Cause:** Chrome is not installed or not in the expected location.
**Solution:**
1. **Install Chrome:**
- Download from: https://www.google.com/chrome/
2. **For custom Chrome location, set environment variable:**
```bash
export CHROME_BIN=/path/to/chrome
```
3. **Docker users:** Ensure Chrome is installed in Dockerfile:
```dockerfile
RUN apt-get update && apt-get install -y google-chrome-stable
ENV CHROME_BIN=/usr/bin/google-chrome
```
---
### Issue: Chrome Crashes in Headless Mode
**Error Message:**
```
WebDriverException: Message: chrome not reachable
```
**Solution:**
1. **Add required flags** (already included in scraper, but verify):
```
--no-sandbox
--disable-dev-shm-usage
--disable-gpu
```
2. **Increase shared memory** (Docker):
```bash
docker run --shm-size=2g your-image
```
3. **Try non-headless mode** to debug:
```bash
python start.py --headless false
```
---
## MongoDB Issues
### Issue: Connection Timeout
**Error Message:**
```
ServerSelectionTimeoutError: connection timed out
```
**Cause:** MongoDB server unreachable or network issues.
**Solution:**
1. **Verify MongoDB is running:**
```bash
# Local MongoDB
mongosh --eval "db.adminCommand('ping')"
# Check service status
sudo systemctl status mongod
```
2. **Check connection URI:**
```yaml
# config.yaml
mongodb:
uri: "mongodb://username:password@host:27017/"
```
3. **For MongoDB Atlas:**
- Whitelist your IP address in Atlas dashboard
- Verify cluster is active
- Check network connectivity
4. **Test connection manually:**
```bash
python -c "from pymongo import MongoClient; c = MongoClient('your-uri', serverSelectionTimeoutMS=5000); print(c.server_info())"
```
---
### Issue: Authentication Failed
**Error Message:**
```
OperationFailure: Authentication failed
```
**Solution:**
1. **Verify credentials** in connection URI
2. **Check database name** matches the authentication database
3. **Use correct URI format:**
```
mongodb://username:password@host:27017/database?authSource=admin
```
---
### Issue: SSL Certificate Error
**Error Message:**
```
SSL: CERTIFICATE_VERIFY_FAILED
```
**Solution:**
1. **For macOS**, run:
```bash
/Applications/Python\ 3.x/Install\ Certificates.command
```
2. **Or install certifi:**
```bash
pip install --upgrade certifi
```
3. **The scraper auto-handles this**, but if issues persist:
```python
import certifi
import os
os.environ['SSL_CERT_FILE'] = certifi.where()
```
---
## AWS S3 Issues
### Issue: Access Denied
**Error Message:**
```
ClientError: An error occurred (AccessDenied) when calling the PutObject operation
```
**Solution:**
1. **Verify AWS credentials:**
```yaml
# config.yaml
s3:
aws_access_key_id: "YOUR_ACCESS_KEY"
aws_secret_access_key: "YOUR_SECRET_KEY"
```
2. **Check IAM permissions** - required policy:
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:ListBucket",
"s3:PutObjectAcl"
],
"Resource": [
"arn:aws:s3:::your-bucket-name",
"arn:aws:s3:::your-bucket-name/*"
]
}
]
}
```
3. **Check bucket policy** allows public-read if using public URLs
---
### Issue: Bucket Not Found
**Error Message:**
```
ClientError: An error occurred (NoSuchBucket)
```
**Solution:**
1. **Verify bucket name** in config.yaml
2. **Check region** matches bucket location:
```yaml
s3:
region_name: "us-east-1" # Must match bucket region
bucket_name: "your-bucket"
```
3. **Create bucket** if it doesn't exist via AWS Console or CLI
---
### Issue: Invalid Credentials
**Error Message:**
```
NoCredentialsError: Unable to locate credentials
```
**Solution:**
1. **Set credentials in config.yaml** or environment variables:
```bash
export AWS_ACCESS_KEY_ID=your_key
export AWS_SECRET_ACCESS_KEY=your_secret
```
2. **Or use AWS credentials file:**
```
~/.aws/credentials
[default]
aws_access_key_id = YOUR_KEY
aws_secret_access_key = YOUR_SECRET
```
---
## Scraping Issues
### Issue: Reviews Tab Not Found
**Error Message:**
```
TimeoutException: Reviews tab not found or could not be clicked
```
**Cause:** Google Maps UI changed or page didn't load properly.
**Solution:**
1. **Try non-headless mode** to see what's happening:
```bash
python start.py --headless false
```
2. **Check the URL** is a valid Google Maps place URL
3. **Increase timeout** - network may be slow
4. **Clear cookies/cache** - Google may be showing consent dialogs
5. **Try different sort order:**
```bash
python start.py --sort relevance
```
---
### Issue: No Reviews Found
**Error Message:**
```
WARNING: No review cards found in this iteration
```
**Cause:** Page structure changed or place has no reviews.
**Solution:**
1. **Verify the place has reviews** by opening URL in browser
2. **Check if page requires login** for reviews
3. **Wait longer** for page to load - add delay in config
4. **Check for CAPTCHA** - may need to solve manually first
---
### Issue: Stale Element Reference
**Error Message:**
```
StaleElementReferenceException: stale element reference: element is not attached to the page document
```
**Cause:** Page updated while scraping.
**Solution:** This is handled automatically by the scraper. If persistent:
1. **Reduce scroll speed** - increase sleep time
2. **Run in non-headless mode** to observe behavior
3. **Restart scraper** - temporary DOM issue
---
### Issue: Cookie Consent Blocking
**Cause:** Cookie dialog not being dismissed.
**Solution:**
1. **Clear browser data:**
```bash
rm -rf ~/Library/Application\ Support/undetected_chromedriver
```
2. **The scraper handles this automatically**, but you can:
- Open the URL manually first and accept cookies
- Use a different Google account region
---
## API Server Issues
### Issue: Port Already in Use
**Error Message:**
```
OSError: [Errno 48] Address already in use
```
**Solution:**
1. **Find and kill the process:**
```bash
# Find process using port 8000
lsof -i :8000
# Kill the process
kill -9 <PID>
```
2. **Use different port:**
```bash
uvicorn api_server:app --port 8080
```
---
### Issue: Max Concurrent Jobs Reached
**Error Message:**
```
HTTP 429: Maximum concurrent jobs (3) reached
```
**Solution:**
1. **Wait for existing jobs** to complete
2. **Cancel pending jobs:**
```bash
curl -X POST "http://localhost:8000/jobs/{job_id}/cancel"
```
3. **Increase limit** in `api_server.py` (not recommended for stability)
---
### Issue: CORS Errors (Browser)
**Error Message:**
```
Access-Control-Allow-Origin header missing
```
**Solution:** CORS is enabled by default. If issues persist:
1. **Check allowed origins** in `api_server.py`
2. **For development**, ensure middleware is configured:
```python
app.add_middleware(
CORSMiddleware,
allow_origins=["*"],
allow_methods=["*"],
allow_headers=["*"],
)
```
---
## Image Download Issues
### Issue: Images Not Downloading
**Cause:** Network issues or Google blocking requests.
**Solution:**
1. **Check network connectivity**
2. **Verify image URLs** are accessible
3. **Reduce parallel downloads:**
```yaml
download_threads: 2 # Reduce from default 4
```
4. **Check disk space** for image storage
---
### Issue: Images Corrupted or Wrong Size
**Cause:** Partial downloads or URL issues.
**Solution:**
1. **Clear image directory** and re-run:
```bash
rm -rf review_images/
```
2. **Check max dimensions** in config:
```yaml
max_width: 1200
max_height: 1200
```
---
### Issue: Permission Denied Writing Images
**Error Message:**
```
PermissionError: [Errno 13] Permission denied
```
**Solution:**
1. **Check directory permissions:**
```bash
chmod 755 review_images/
```
2. **Use different directory:**
```yaml
image_dir: "/path/with/write/access"
```
---
## Configuration Issues
### Issue: Config File Not Found
**Error Message:**
```
FileNotFoundError: config.yaml not found
```
**Solution:**
1. **Create config.yaml** from example:
```bash
cp examples/config-example.txt config.yaml
```
2. **Specify custom path:**
```bash
python start.py --config /path/to/config.yaml
```
---
### Issue: Invalid YAML Syntax
**Error Message:**
```
yaml.scanner.ScannerError: mapping values are not allowed here
```
**Solution:**
1. **Validate YAML syntax** using online validator
2. **Check indentation** - use spaces, not tabs
3. **Escape special characters** in strings:
```yaml
url: "https://example.com?param=value" # Use quotes
```
---
### Issue: Invalid Configuration Values
**Error Message:**
```
ValueError: Invalid sort_by value
```
**Solution:**
1. **Check allowed values:**
- `sort_by`: newest, highest, lowest, relevance
- `headless`: true, false
2. **Verify types:**
```yaml
download_threads: 4 # Integer, not string
headless: true # Boolean, not string "true"
```
---
## Performance Issues
### Issue: Scraping Too Slow
**Solution:**
1. **Use headless mode:**
```bash
python start.py --headless
```
2. **Reduce image download threads** if network is slow:
```yaml
download_threads: 2
```
3. **Disable image downloading** for faster scraping:
```yaml
download_images: false
```
4. **Use SSD** for faster JSON/image writes
---
### Issue: High Memory Usage
**Solution:**
1. **Process in batches** - use `stop_on_match` for incremental scraping
2. **Disable image downloading** temporarily
3. **Close other applications**
4. **Increase system swap** if needed
---
### Issue: Chrome Using Too Much CPU
**Solution:**
1. **Use headless mode** - reduces rendering overhead
2. **Add GPU flags:**
```
--disable-gpu
--disable-software-rasterizer
```
3. **Limit concurrent jobs** in API mode
---
## Python & Dependencies Issues
### Issue: Module Not Found
**Error Message:**
```
ModuleNotFoundError: No module named 'undetected_chromedriver'
```
**Solution:**
1. **Install dependencies:**
```bash
pip install -r requirements.txt
```
2. **Verify virtual environment is activated:**
```bash
source venv/bin/activate # Linux/macOS
venv\Scripts\activate # Windows
```
---
### Issue: Incompatible Package Versions
**Error Message:**
```
ImportError: cannot import name 'X' from 'Y'
```
**Solution:**
1. **Reinstall all dependencies:**
```bash
pip uninstall -r requirements.txt -y
pip install -r requirements.txt
```
2. **Create fresh virtual environment:**
```bash
python -m venv fresh_venv
source fresh_venv/bin/activate
pip install -r requirements.txt
```
---
### Issue: Python Version Incompatibility
**Error Message:**
```
SyntaxError: invalid syntax
```
**Solution:**
1. **Check Python version** (requires 3.9+):
```bash
python --version
```
2. **Install correct Python version:**
```bash
# macOS with pyenv
pyenv install 3.13.1
pyenv local 3.13.1
# Or use system package manager
```
---
## Getting Help
If your issue isn't listed here:
1. **Enable debug logging:**
```bash
LOG_LEVEL=DEBUG python start.py
```
2. **Check logs** for detailed error messages
3. **Search existing issues** on GitHub
4. **Create a new issue** with:
- Error message (full traceback)
- Python version (`python --version`)
- OS and version
- Chrome version
- Steps to reproduce