The three most common Shopware 6 errors are cache issues, indexing failures, and plugin compatibility conflicts. Fix them by:
bin/console cache:clear and http:cache:clear
bin/console dal:refresh:index
After troubleshooting hundreds of Shopware 6 stores, I've found that 80% of errors fall into three categories. This guide covers the exact steps to diagnose and fix each one, saving you hours of debugging.
You've made changes to your theme or configuration, but the storefront still shows old content. Or you see errors like "Unable to generate a URL" or "Cannot find route definition."
Shopware 6 uses multiple cache layers (app cache, HTTP cache, Redis/database cache). When you update code or configuration, stale cache causes the system to serve outdated data or reference entities that no longer exist.
Run these commands in order:
# Clear app cache
bin/console cache:clear
# Clear HTTP cache
bin/console http:cache:clear
# Rebuild cache (warmup)
bin/console cache:warmupIf you're using Redis as your cache adapter, also run:
redis-cli FLUSHALL
Pro Tip: If you're in development mode and constantly clearing cache, add APP_ENV=dev to your .env file and disable HTTP cache entirely. For production, always keep cache enabled and clear only when deploying changes.
If cache commands fail or cache persists, check these:
var/cache/. Run chmod -R 775 var/cache.
sudo service php8.2-fpm restart.
Products don't appear in the storefront after import, search results are outdated, or you see errors like "Entity not found" or "No index found for entity." The admin dashboard may show "Indexing in progress" stuck at a certain percentage.
Shopware 6 uses a Data Abstraction Layer (DAL) that maintains indexed versions of entities for performance. When product data changes (via API, import, or admin), the index must be rebuilt. Indexing can fail due to data corruption, memory limits, or interrupted processes.
Force a complete re-index:
# Re-index all entities
bin/console dal:refresh:index
# If that fails, try refreshing specific entities
bin/console dal:refresh:index --only="product.indexer"
bin/console dal:refresh:index --only="category.indexer"If indexing is stuck or repeatedly fails:
var/log/prod-*.log for specific indexing errors. Look for database deadlocks or memory exhaustion.
mysql> SELECT * FROM product WHERE parent_id IS NOT NULL AND parent_id NOT IN (SELECT id FROM product);
-- Should return 0 rows. If not, you have orphaned variants.php.ini:
memory_limit = 512M ; or higher for large catalogsnohup bin/console dal:refresh:index > indexing.log 2>&1 &Prevention: Schedule regular indexing via cron (daily during off-peak hours) to prevent index drift. Add this to your crontab:
0 2 * * * cd /var/www/shopware && bin/console dal:refresh:indexAfter installing or updating a plugin, you encounter errors like "Class not found," "Service not found," or complete white screens. Sometimes the admin panel becomes inaccessible or specific features stop working.
Plugins may be incompatible with your Shopware version, conflict with other plugins (duplicate service definitions, event subscriber conflicts), or have dependencies that aren't met. Shopware's plugin architecture allows deep system modifications, which means poorly-coded plugins can break core functionality.
Step 1: Identify the problematic plugin
var/log/prod-*.logbin/console plugin:deactivate PluginName
bin/console cache:clearStep 2: Check compatibility
composer.json lists your Shopware version in require constraints
Step 3: Resolve the conflict
Depending on the issue, choose one of these solutions:
Best Practice: Always test plugin installations in a staging environment before deploying to production. Keep a backup before installing any plugin, and document all installed plugins with their versions in your project documentation.
Written by Huzaifa Mustafa
These are the most common issues, but Shopware errors can get complex. If you're stuck troubleshooting, I can help diagnose and fix it fast.
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