Error code E0154

Note: this error code is no longer emitted by the compiler.

Imports (use statements) are not allowed after non-item statements, such as variable declarations and expression statements.

Here is an example that demonstrates the error:

#![allow(unused)] fn main() { fn f() { // Variable declaration before import let x = 0; use std::io::Read; // ... } }

The solution is to declare the imports at the top of the block, function, or file.

Here is the previous example again, with the correct order:

#![allow(unused)] fn main() { fn f() { use std::io::Read; let x = 0; // ... } }

See the Declaration Statements section of the reference for more information about what constitutes an item declaration and what does not.