Error: failed to select a version for `proc-macro2`.

Question

Error: failed to select a version for `proc-macro2`.

... required by package `tokio-macros v0.2.4`
... which is depended on by `tokio v0.2.20`
... which is depended on by `FCE v0.1.0 (/Users/mike/dev/work/fluence/wasm/fce)`
versions that meet the requirements `^1.0.7` are: 1.0.12, 1.0.10, 1.0.9, 1.0.8, 1.0.7

all possible versions conflict with previously selected packages.

previously selected package `proc-macro2 v1.0.3`
... which is depended on by `failure_derive v0.1.7`
... which is depended on by `failure v0.1.7`
... which is depended on by `FCE v0.1.0 (/Users/mike/dev/work/fluence/wasm/fce)`

failed to select a version for `proc-macro2` which could resolve this conflict
а как решать такие проблемы без ручного подбора версии токио?

#backend #embedded #programming #russian #rust

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02.05.2020

1 ответов

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!Cat · Accepted Answer

!Cat

попробуй cargo update -p proc-macro2

0

02.05.2020

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Error: failed to select a version for `proc-macro2`.

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