In our case, we encountered a similar problem, and we resolved it by following these steps:

  1. Changing Network Connection Settings in Eclipse: We navigated to Windows → Preferences → General → Network Connection and selected Direct as the active provider. After applying the changes, we clicked OK.
  2. Copying the cacert File: When the previous solution didn't work, we tried another approach. We copied the cacert file from our JRE (Java Runtime Environment) directory.
  3. Pasting the cacert File: We then pasted the copied cacert file into the security directory of our Eclipse installation, replacing the existing cacert file.

This solution involves modifying Eclipse's network connection settings and ensuring that the necessary security certificates are in place. By directing the network connection and updating the security certificates, we can resolve any connectivity issues that may have been affecting Eclipse.

Adjusting the network connection settings and ensuring the presence of the required security certificates helped to establish stable connections and resolve any related errors.

Solution 2:

The error "Eclipse: MarketplaceDiscoveryStrategy failed with an error" typically occurs when Eclipse encounters issues while trying to access or communicate with the Eclipse Marketplace. To resolve this error, you can try the following steps:

  1. Check Internet Connection: Ensure that your internet connection is stable and functional. Sometimes, network issues can prevent Eclipse from accessing the Marketplace.
  2. Restart Eclipse: Try restarting Eclipse. This can sometimes resolve temporary glitches or errors that may be causing the MarketplaceDiscoveryStrategy to fail.
  3. Check Eclipse Version: Verify that you are using a compatible version of Eclipse. Sometimes, outdated or incompatible versions may encounter errors while accessing the Eclipse Marketplace.
  4. Proxy Settings: If you are behind a proxy, make sure that your proxy settings in Eclipse are configured correctly. Incorrect proxy settings can hinder Eclipse's ability to connect to the Marketplace.
  5. Firewall/Antivirus: Check if your firewall or antivirus software is blocking Eclipse's access to the internet. You may need to add an exception for Eclipse or configure your firewall settings accordingly.
  6. Update Eclipse: Ensure that you are using the latest version of Eclipse. Updates often include bug fixes and improvements that can address issues related to accessing the Eclipse Marketplace.
  7. Check Eclipse Configuration: Review your Eclipse configuration settings to ensure that there are no conflicting configurations or preferences that could be causing the error.
  8. Reinstall Eclipse Marketplace: If the issue persists, you can try reinstalling the Eclipse Marketplace plugin. Navigate to Help > Eclipse Marketplace > Installed, and uninstall the Marketplace client. Then, reinstall it from the Eclipse Marketplace website.

Solution 3:

During my usage of the client machine, I encountered a similar error, which I resolved by following these steps:

  1. Manual Configuration of Network Connection: We navigated to Windows → Preferences → General → Network Connection in Eclipse settings. There, we set the provider to manual and edited both http and https to include the client's authentication details.
  2. Firewall Inspection: We also checked if the firewall settings were blocking the installation attempts. Recognizing that the firewall might prevent successful installations, we explored additional solutions.
  3. Alternative Solutions: Considering the admin team's help to reconfigure the firewall, we pursued an alternative approach. Instead, we opted to verify the root certificates to determine the location of the cacerts file.
  4. Verification of Root Certificates: We proceeded to locate the cacerts file to ensure the integrity of the root certificates. This involved determining the file's location within the system.

By manually configuring the network connection and inspecting the firewall settings, we were able to troubleshoot the problem effectively without requiring extensive changes from the admin team. Additionally, verifying the root certificates offered insights into potential issues with certificate validation, enabling us to ensure a secure and stable environment for our operations.

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