Error map

E0502 Rust: error[E0502]: cannot borrow `x` as mutable because it is also borrowed as immutable

Rust · layer 4, Application & API

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4 · Application & API
E0502 — Rust: error[E0502]: cannot borrow `x` as mutable because it is also borrowed as immutable (Rust)E0502Cannot access a disposed context instance — ObjectDisposedException: Cannot access a disposed context instance (.NET)Cannot access a dis…E0308 — Rust: error[E0308]: mismatched types — expected `X`, found `Y` (Rust)E0308E0382 — Rust: error[E0382]: borrow of moved value: `x` (Rust)E0382InvalidOperationException — InvalidOperationException: Unable to resolve service for type 'X' while attempting to activate 'Y' (.NET)InvalidOperationExc…JsonException object cycle — JsonException: A possible object cycle was detected (.NET)JsonException objec…No database provider has been configured — InvalidOperationException: No database provider has been configured for this DbContext (.NET)No database provide…AttributeError — AttributeError: 'X' object has no attribute 'y' (Python)AttributeErrorClassCastException — java.lang.ClassCastException: class A cannot be cast to class B (Java)ClassCastExceptionTS7016 — TS7016: Could not find a declaration file for module 'x'. 'x.js' implicitly has an 'any' type. (Node.js)TS7016

Directly related (3)

Cannot access a disposed context instance.NET

ObjectDisposedException: Cannot access a disposed context instance

Code used a DbContext after its scope ended — usually async void, fire-and-forget tasks, or capturing a scoped context in a singl…

E0308Rust

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…

E0382Rust

Rust: error[E0382]: borrow of moved value: `x`

A value was moved (ownership transferred) and then used again.

Two steps away (6)

InvalidOperationException.NET

InvalidOperationException: Unable to resolve service for type 'X' while attempting to activate 'Y'

ASP.NET Core’s dependency injection container can’t build Y because one of its constructor dependencies (X) was never registered.

JsonException object cycle.NET

JsonException: A possible object cycle was detected

System.Text.Json found a reference loop (e.g. Order → Customer → Orders → …) while serialising, usually from EF Core navigation p…

No database provider has been configured.NET

InvalidOperationException: No database provider has been configured for this DbContext

EF Core created a DbContext without UseSqlServer/UseNpgsql/UseSqlite — typically because the context was newed up manually or reg…

AttributeErrorPython

AttributeError: 'X' object has no attribute 'y'

You accessed an attribute or method that doesn’t exist on that object type.

ClassCastExceptionJava

java.lang.ClassCastException: class A cannot be cast to class B

An object was cast to a type it isn’t.

TS7016Node.js

TS7016: Could not find a declaration file for module 'x'. 'x.js' implicitly has an 'any' type.

The JavaScript package has no TypeScript types bundled and no @types package installed.

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