Error map
E0599: no method named found for type Rust: error[E0599]: no method named `push_str` found for struct `Vec<String>` in the current scope
Rust · layer 4, Application & API
Centre: this error. First ring: errors it is linked with (11). 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 (11)
Rust: error[E0277]: the trait bound `Foo: Display` is not satisfied / `Rc<RefCell<T>>` cannot be sent between threads safely
A type doesn't implement a trait required by a function, macro or generic bound.
Rust: error[E0432]: unresolved import `crate::utils` — maybe a missing crate `utils`?
A `use` path doesn't point to an existing module, crate or item.
Rust: error[E0608]: cannot index into a value of type `HashSet<i32>` / `String` cannot be indexed by `{integer}`
The type doesn't support `[]` indexing (or not with that index type).
Cargo: Blocking waiting for file lock on package cache / on build directory
Another cargo process (or rust-analyzer/IDE) holds the lock, so this command waits.
Rust: error[E0425]: cannot find value `x` in this scope
The identifier (variable, function, constant) isn't defined where it's used.
Rust: error[E0282]: type annotations needed for `Vec<_>` / consider giving `x` an explicit type
The compiler can't infer a type from the available information.
Rust: error[E0369]: binary operation `+` cannot be applied to type `Foo` / cannot add `&str` to `&str`
An operator (`+`, `==`, `
Rust: error[E0004]: non-exhaustive patterns: `None` not covered
A `match` doesn't handle every possible value of the type.
Rust: error[E0061]: this function takes 2 arguments but 1 argument was supplied
A call has too few or too many arguments for the function signature.
Rust: error[E0038]: the trait `Shape` cannot be made into an object (not dyn compatible)
You used `dyn Trait` for a trait whose methods aren't object-safe (generic methods, `Self` returns, `Sized`).
Cargo: warning: spurious network error (2 tries remaining): [35] SSL connect error / error: failed to download from `https://index.crates.io/...`
Cargo couldn't reach crates.io (network, proxy, TLS or DNS issues).
Two steps away (26)
Rust: error[E0308]: mismatched types — expected `X`, found `Y`
A value’s type doesn’t match what the context expects — common with &str vs String, Option/Result vs plain values, and integer ty…
Rust: error[E0271]: type mismatch resolving `<impl Iterator as Iterator>::Item == i32`
A trait's associated type (Iterator::Item, Future::Output) doesn't match what's expected.
Rust: thread 'main' panicked at src/main.rs:5:36: called `Result::unwrap()` on an `Err` value: ParseIntError { kind: InvalidDigit }
`unwrap()`/`expect()` was called on an `Err`, and the error value is shown in the panic message.
Go: declared and not used: x / "fmt" imported and not used
Go refuses to compile code with unused local variables or unused imports.
Go: cannot find package "github.com/pkg/errors" in any of: /usr/local/go/src/github.com/pkg/errors (from $GOROOT) /go/src/github.com/pkg/errors (from $GOPATH)
Go could not locate an imported package — it is not downloaded, the module is not initialised, or GOPATH mode is in effect.
Go: go: updates to go.mod needed; to update it: go mod tidy
`go.mod` is out of sync with the imports in your code, and Go is running with `-mod=readonly` (the default).
Rust: thread 'main' panicked at src/main.rs:5:5: index out of bounds: the len is 3 but the index is 3
A Vec/array/slice was indexed past its length.
Cargo: error: failed to select a version for the requirement `serde = "^2.0"` — candidate versions found which didn't match: 1.0.197
Cargo can't find a version of a dependency satisfying the constraints you (or other crates) set.
Cargo: error: failed to parse manifest — feature `edition2024` is required / lock file version 4 requires `-Znext-lockfile-bump`
Your Cargo is older than the manifest or lockfile requires.
Rust: error[E0499]: cannot borrow `v` as mutable more than once at a time
Two mutable references to the same value were alive at once, which Rust forbids.
Rust: error[E0505]: cannot move out of `s` because it is borrowed
You moved a value while a reference to it was still in use.
Rust: error[E0507]: cannot move out of `self.name` which is behind a shared reference
You tried to take ownership of a value through a reference (or from a Vec/Option behind `&`).
C++: error: 'x' was not declared in this scope (undeclared identifier)
The compiler met a name it has never seen: it is misspelled, declared later, out of scope, or its header or namespace is missing.
MSVC: error C2065: 'x': undeclared identifier
Visual C++ met a name it has not seen declared — a typo, a missing header or namespace, or use outside its scope.
Rust: error[E0433]: failed to resolve: use of undeclared type `HashMap`
A path starts with a name that isn't in scope (a type or module you didn't import).
C++: error: no match for 'operator<<' (operand types are 'std::ostream' and 'X')
You used an operator on a type that does not define it — most often printing your own class with `
C++: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
You compared a string literal or pointer with a character or integer — typically `ch == "y"` instead of `ch == 'y'`.
Rust: error[E0381]: used binding `x` is possibly-uninitialized
A variable might be read before every code path assigned it.
Cargo: error: package `home v0.5.9` cannot be built because it requires rustc 1.81 or newer, while the currently active rustc version is 1.78.0
A dependency's minimum supported Rust version (MSRV) is higher than your toolchain.
rustup: error: toolchain 'nightly-x86_64-unknown-linux-gnu' is not installed / error: no override and no default toolchain set
rustup can't find the toolchain requested by `rust-toolchain.toml`, an override, or no default is set.
C++: error: no matching function for call to 'f(int, const char*)'
No overload of the function accepts the arguments you passed — wrong count, wrong types, or a missing conversion.
Go: not enough arguments in call to f have (int) want (int, string)
A function was called with fewer or more arguments than it declares.
Rust: error[E0063]: missing field `age` in initializer of `User`
A struct literal doesn't set all fields.
ssh: connect to host x port 22: Connection refused
The server answered, but nothing is listening on the SSH port — sshd isn’t running, it uses another port, or a firewall actively…
ssh: connect to host x port 22: Connection timed out
SSH packets get no reply — a firewall/security group drops them, the server is off, or the IP is wrong.
ping: google.com: Temporary failure in name resolution
The Linux host can’t resolve domain names — no working DNS server is configured or reachable.
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