--- title: "Error [Join does not verify] when joining injected tables" slug: "error-join-does-not-verify-when-joining-injected-tables" updated: 2023-08-16T13:09:57Z published: 2023-08-16T13:09:57Z canonical: "docs.datajet.app/error-join-does-not-verify-when-joining-injected-tables" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.datajet.app/llms.txt > Use this file to discover all available pages before exploring further. # Error [Join does not verify] when joining injected tables - Join does not verify - failed to build long key join - failed to create join - cannot add join 1. Check disk space  (Note: running out of disk-space will create a host of seemingly unconnected errors) 2. If working with injected data, check package data exists Other possible causes: The following error may be seen building a join if one of the injected fields has been hidden using Project | Show/Hide Hidden fields. ```json Join does not verify failed to build long key join failed to create join cannot add join ```