neblio-Qt Will Not Start Due to a Corrupt Blockchain

Occasionally if the computer neblio-Qt is running on unexpectedly crashes, or if the neblio-Qt process is forced to close, the blockchain database can become corrupt. This can cause a variety of errors that prevent neblio-Qt from restarting, for example:

The fix for this is simple, simply delete the blockchain and databases, and let neblio-Qt resync.

  1. Close neblio-qt
  2. Locate the data folder for your operating system (this may be a hidden folder):
    Windows: %APPDATA%\neblio\
    macOS: ~/Library/Application Support/neblio/
    Linux or RPi: ~/.neblio/
  3. Copy the wallet.dat file from this folder to somewhere safe, such as your desktop.
  4. Delete everything in this folder EXCEPT wallet.dat, including the folders. The wallet.dat file contains your private keys, DO NOT DELETE IT.
  5. Restart neblio-Qt. The wallet will load your private keys from the wallet.dat file and begin downloading a new copy of the blockchain. Once the wallet is fully synced, you will see your NEBL in the wallet.
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