Please help a little noob!

1

I could not understand what happened,please help me solve this noob question!Many thanks!

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:111:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
111 |             Message::Text(txt) => {
    |             ^^^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:115:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
...
115 |             Message::Binary(bin) => {
    |             ^^^^^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:131:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
...
131 |             Message::Ping(_) => {
    |             ^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:136:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
...
136 |             Message::Pong(_) => {
    |             ^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:141:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
...
141 |             Message::Close(_) => {
    |             ^^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

error[E0308]: mismatched types
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/dtn7-0.21.0/src/bin/dtntrigger.rs:147:13
    |
110 |         match msg {
    |               --- this expression has type `dtn7_plus::client::Message`
...
147 |             Message::Frame(_) => {
    |             ^^^^^^^^^^^^^^^^^ expected `Message`, found `tungstenite::Message`
    |
    = note: `tungstenite::Message` and `Message` have similar names, but are actually distinct types
note: `tungstenite::Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.17.3/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
note: `Message` is defined in crate `tungstenite`
   --> /home/sun/.cargo/registry/src/index.crates.io-6f17d22bba15001f/tungstenite-0.21.0/src/protocol/message.rs:160:1
    |
160 | pub enum Message {
    | ^^^^^^^^^^^^^^^^
    = note: perhaps two different versions of crate `tungstenite` are being used?

For more information about this error, try `rustc --explain E0308`.
error: could not compile `dtn7` (bin "dtntrigger") due to 6 previous errors
warning: build failed, waiting for other jobs to finish...
error: failed to compile `dtn7 v0.21.0`, intermediate artifacts can be found at `/tmp/cargo-installId3SqC`.
To reuse those artifacts with a future compilation, set the environment variable `CARGO_TARGET_DIR` to that path.
2

you are my heroes,thank you!!!

3

First, it's appreciated if you can format the errors (and any code samples) according to Forum Code Formatting and Syntax Highlighting

The error messages are a bit wordy, but long story short, you seem to be trying to match a value of type dtn7_plus::client::Message against patterns for type tungstenite::Message. If you look at your use statements, have you perhaps imported tungstenite::Message?

4 Likes
4

Try running this command:

cargo update -p dtn7-plus --precise 0.7.1

This will downgrade the dtn7-plus crate to an older version. The new version depends on tungstenite 0.21, making it incompatible with the latest dtn7 crate which uses tungstenite 0.17. (Making this backward-incompatible change in a patch release was a mistake by the dtn7-plus maintainer.)

5 Likes
5

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