rand 0.6.2 is broken on wasm32-unknown-unknown #674

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1. netgusto commented on Jan 4, 2019

   

   netgusto

   on Jan 4, 2019

   Last edited by netgusto

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   I experience this problem too.

   When I add the "wasm-bindgen" feature in my dependencies, like so:

   [dependencies]
   wasm-bindgen = "0.2"
   rand = { version = "0.6", features = ["wasm-bindgen"] }

   I get this error upon compilation:

   the package depends on `rand`, with features: `wasm_bindgen` but `rand` does not have these features.
2. dhardy commented on Jan 4, 2019

   

   dhardy

   on Jan 4, 2019

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   Hmm, that's what we get for moving optional dependencies... forgetting that they are also features.

   You can directly depend on rand_os to enable the feature, but I guess we should fix by adding those features back to rand itself.
3. dhardy

   closed this as completedin #676on Jan 4, 2019
4. ernieturner commented on Jan 7, 2019

   

   ernieturner

   on Jan 7, 2019

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   I seem to be running into this issue even on rand 0.6.3, but with a different error message. My dependencies are

   [dependencies]
   wasm-bindgen = {version = "~0.2.30", features = ["serde-serialize"]}
   rand = { version = "0.6", features = ["wasm-bindgen"] }
   

   Which works on rand 0.6.1, but on 0.6.3 when I try to compile it via cargo build --release --target wasm32-unknown-unknown I get the following

   error[E0463]: can't find crate for `wasm_bindgen`
      --> /Users/ernie/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.6.3/src/lib.rs:729:9
       |
   729 |         extern crate wasm_bindgen;
       |         ^^^^^^^^^^^^^^^^^^^^^^^^^^ can't find crate
   

   I tried adding the rand_os line to my features array, based on some of the discussion here and in #675 but it didn't seem to change anything from what I could tell.
5. dhardy commented on Jan 8, 2019

   

   dhardy

   on Jan 8, 2019

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   Yes, this is #682 which has an easy fix but I didn't get to it yet...

   👍React with 👍1Reacted by Ernie Turner