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DrupalCoreDatabaseDatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 1 no such table:

I’m getting a strange error with my Drupal site. The error is as follows:

DrupalCoreDatabaseDatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 1 no such table: router: SELECT name, route, fit FROM {router} WHERE pattern_outline IN ( :patterns__0 ) AND number_parts >= :count_parts; Array ( [:count_parts] => 0 [:patterns__0] => / ) in DrupalCoreRoutingRouteProvider->getRoutesByPath() (line 344 of core/lib/Drupal/Core/Routing/RouteProvider.php).

I don’t know much about what’s causing the error. I took a look at the file the error references, but I can’t figure out what to change.

Here are the steps I took that led up to the error:

  1. I started with a Drupal 7 website.
  2. I deleted all of my files from the website directory. Note: The “sites” directory would not delete no matter how many times I tried.
  3. I uploaded my Drupal 8 release candidate 1 hoping that that new “sites” directory would overwrite the old one.
  4. I reloaded my website page and was presented with error above.

Any ideas?

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DrupalCoreDatabaseDatabaseExceptionWrapper: SQLSTATE[HY000]: General error: 1 no such table:

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