Enum McpError 

pub enum McpError {
    ConnectionFailed {
        message: String,
    },
    Protocol {
        message: String,
    },
    JsonRpc {
        code: i32,
        message: String,
    },
    ToolError {
        message: String,
    },
    VersionMismatch {
        supported: Vec<String>,
        requested: String,
    },
    ServerNotFound {
        name: String,
    },
    ToolNotFound {
        name: String,
    },
    ResourceNotFound {
        uri: String,
    },
    Io(Error),
    Json(Error),
}

MCP error types

Variants

ConnectionFailed

Connection to server failed

Fields

message: String

Error message

Protocol

Protocol error (invalid messages, etc.)

Fields

message: String

Error message

JsonRpc

JSON-RPC error from server

Fields

code: i32

Error code

message: String

Error message

ToolError

Tool execution error

Fields

message: String

Error message

VersionMismatch

Version mismatch between client and server

Fields

supported: Vec<String>

Versions supported by server

requested: String

Version requested by client

ServerNotFound

Server not found

Fields

name: String

Server name

ToolNotFound

Tool not found

Fields

name: String

Tool name

ResourceNotFound

Resource not found

Fields

uri: String

Resource URI

Io(Error)

IO error

Json(Error)

JSON serialization error

Trait Implementations

impl Debug for McpError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for McpError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for McpError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Error> for McpError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for McpError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<McpError> for Error

fn from(err: McpError) -> Self

Converts to this type from the input type.