Error map
unable to open database sqlite3.OperationalError: unable to open database file
SQL · layer 5, Data
Centre: this error. First ring: errors it is linked with (12). Outer ring: what those are linked with. Colours show the layer of a request each error belongs to. Click any dot to re-centre the map on it; hover to follow its connections. The centre dot opens the error page.
Directly related (12)
sqlite3.OperationalError: near "x": syntax error
SQLite couldn’t parse the statement; the token after “near” is where it stopped.
sqlite3.OperationalError: attempt to write a readonly database
The process can’t write to the SQLite file or its directory.
sqlite3.OperationalError: database is locked (SQLITE_BUSY)
Another connection holds a write lock on the SQLite file, and this one gave up waiting.
System.UnauthorizedAccessException: Access to the path 'x' is denied
The process’s identity can’t read/write that file or folder — IIS app pool identity, container user, read-only attribute, or a di…
FileNotFoundError: [Errno 2] No such file or directory: 'data.csv'
Python couldn’t find the file at that path — usually because relative paths resolve from the working directory, not the script.
sqlite3.IntegrityError: FOREIGN KEY constraint failed
An insert/update/delete violated a foreign key in SQLite (with PRAGMA foreign_keys=ON).
Error 0x80070570: The file or directory is corrupted and unreadable
Windows can’t read a file because the disk, USB stick or installation media has corrupted data or bad sectors.
sqlite3.OperationalError: no such column: x
SQLite can’t find the column — missing migration, typo, or a string written in double quotes.
sqlite3.DatabaseError: database disk image is malformed
The SQLite file is corrupted.
0x80070020: The process cannot access the file because it is being used by another process
Another program has the file open (locked), so Windows can’t modify, delete or replace it.
No space left on device, but df shows free space (inodes exhausted)
The filesystem has run out of inodes — the slots for files — even though there are gigabytes free, usually because of millions of…
bash: /bin/rm: Argument list too long
A glob like * expanded to more file names than the kernel allows in one command (ARG_MAX), so the command never ran.
Two steps away (34)
MySQL ERROR 1064 (42000): You have an error in your SQL syntax
MySQL couldn’t parse the query. The text after “near” shows where parsing failed.
Column reference is ambiguous / Column 'id' in field list is ambiguous (MySQL 1052)
A column name exists in more than one joined table, so the database doesn’t know which one you mean.
Column must appear in the GROUP BY clause / isn't in GROUP BY (MySQL 1055 only_full_group_by)
You selected a column that is neither grouped nor aggregated, so the result would be ambiguous.
Linux: Permission denied
Your user (or the service user) lacks read/write/execute permission on a file, directory or one of its parents.
sqlite3.IntegrityError: UNIQUE constraint failed: users.email
An insert/update duplicated a value in a UNIQUE or PRIMARY KEY column in SQLite.
sqlite3.IntegrityError: NOT NULL constraint failed: table.column
A NULL went into a NOT NULL column in SQLite.
Deadlock found when trying to get lock; try restarting transaction
Two transactions waited on each other’s locks; the database killed one so the other could continue.
Lock wait timeout exceeded; try restarting transaction (MySQL 1205)
A query waited too long for a row lock held by another transaction and gave up.
MySQL ERROR 1213 (40001): Deadlock found when trying to get lock; try restarting transaction
MySQL detected a deadlock between two transactions and rolled one back.
npm ERR! code EACCES — permission denied
npm can’t write to a directory — usually global installs into a root-owned folder.
Error: ENOENT: no such file or directory
A file or directory the program tried to open doesn’t exist at that path.
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
The docker CLI can’t talk to the Docker engine — it isn’t running, or your user can’t access the socket.
java.io.FileNotFoundException: config.properties (No such file or directory)
Java couldn’t open the file — wrong path relative to the working directory, missing file, or a classpath resource read as a file.
java.nio.file.NoSuchFileException: /path/file
An NIO Files operation targeted a path that doesn’t exist.
Error: EISDIR: illegal operation on a directory, read
A file API (readFile, writeFile, createReadStream) was given a directory path.
MySQL ERROR 1452: Cannot add or update a child row: a foreign key constraint fails
You inserted/updated a row whose foreign key value doesn’t exist in the referenced parent table.
SQL Server: The INSERT statement conflicted with the FOREIGN KEY constraint 'x'. (Msg 547)
The row references a parent that doesn’t exist (or a DELETE would orphan children).
Blue Screen: MEMORY_MANAGEMENT (Stop code 0x0000001A)
Windows detected a severe memory-management error — commonly faulty RAM, unstable memory settings or a bad driver.
java.nio.file.AccessDeniedException: /path
The OS denied a file operation to the Java process.
Error: ENOTDIR: not a directory
A path treats a file as if it were a directory (e.g. file.txt/child).
MySQL ERROR 1054 (42S22): Unknown column in 'field list'
The query references a column that doesn’t exist in the table (or an unquoted string being read as a column).
PostgreSQL: ERROR: column "x" does not exist
PostgreSQL can’t find the column — a missing migration, a case-sensitive quoted name, or a string literal written in double quote…
SQL Server: Invalid object name 'x'. (Msg 208)
The table/view doesn’t exist in the current database or schema.
error: object file .git/objects/x is empty / fatal: loose object is corrupt
The local Git object database is corrupted — usually after a crash, disk full or sync tool interference.
MySQL ERROR 126 (HY000): Incorrect key file for table; try to repair it
MySQL can’t use a table’s index file — usually a full tmp disk during a query, or MyISAM corruption.
Windows Error 0x80070005 (E_ACCESSDENIED): Access is denied
Windows refused an operation because the account or process lacks permission — seen in Windows Update, installers, Task Scheduler…
Error: EEXIST: file already exists, mkdir
Node tried to create a file/directory/symlink that already exists.
npm ERR! code ENOTEMPTY — ENOTEMPTY: directory not empty, rename
npm couldn’t rename a folder in node_modules because it wasn’t empty — usually a corrupted or concurrently modified node_modules.
no space left on device (Docker / Linux)
The disk (or inode table) is full — Docker images, build cache, logs and volumes are common culprits.
Warning: include(x.php): Failed to open stream: No such file or directory
PHP couldn’t open a file for include/require/fopen — wrong path, missing file, or no permission.
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x92 in position 10: invalid start byte
Python read bytes that aren’t valid in the encoding it assumed (usually UTF-8).
bash: command not found
The shell can’t find an executable with that name in any directory on your PATH.
OCI runtime create failed: exec: "x": executable file not found in $PATH
The command you asked the container to run doesn’t exist inside the image — wrong command name, a shell that isn’t installed (bas…
Read-only file system (EROFS) — cannot write to disk
The filesystem is mounted read-only — often because the kernel remounted it after detecting disk errors.
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