集成Chartboost后无法观看激励视频问题求助

Hey there, sorry to hear you're stuck with this asset download issue—let's work through some practical fixes that have resolved similar problems for other developers:

• Update your Chartboost SDK to the latest stable version
  Outdated SDK builds often have compatibility gaps with Chartboost's updated CDN endpoints or asset delivery logic. If you haven't updated in a while, head to your project's dependency manager (e.g., Gradle for Android) and pull the newest release. This is one of the most common fixes for sudden asset download failures.

• Validate network access and permissions
  The java.io.FileNotFoundException usually means the server returned a 404 or the request couldn't reach the CDN at all. First, confirm your app has the <uses-permission android:name="android.permission.INTERNET" /> permission in your AndroidManifest.xml. Then, test on a different network—if you're using a corporate proxy or firewall, it might be blocking traffic to a2.chartboost.com. Try mobile data or a home Wi-Fi network to rule this out.

• Clear Chartboost's local cache
  Corrupted cached assets can cause the SDK to fail when trying to download or reuse files. For testing purposes, add a call to clear the cache at app initialization:

  Chartboost.clearCache();
  

  Note: Remove this line once the issue is resolved—you don't want to clear cache on every launch in production, as it will hurt performance.

• Verify your Chartboost Dashboard configuration
  It's possible the specific video icon asset (c842af67839244ada54bb7ea8a80076f) was removed, deactivated, or linked to an invalid ad unit in your dashboard. Log into your Chartboost account, check the ad units you're using, and try re-syncing your settings or creating a new test ad unit to see if the asset loads correctly.

• Enable verbose logging for deeper insights
  Turn on full debug logging in the SDK to capture more details about the failed request. For Android, add this at initialization:

  Chartboost.setLoggingLevel(Chartboost.LoggingLevel.ALL);
  

  The logs might reveal hidden issues like redirect failures, invalid request headers, or region-specific CDN blocks that aren't obvious from the basic error message.

• Reach out to Chartboost Support
  If none of the above works, gather all relevant details: full stack trace of the error, your SDK version, app ID, device model/OS version, and network environment. Submit a support ticket through your Chartboost dashboard—their team can access CDN logs directly to diagnose why that specific asset URL is returning a 404.

内容的提问来源于stack exchange，提问作者Shreya Prajapati