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Incompatible requirements for protobuf in Cirq #32

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thisac opened this issue Jun 25, 2020 · 0 comments
Open

Incompatible requirements for protobuf in Cirq #32

thisac opened this issue Jun 25, 2020 · 0 comments

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@thisac
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thisac commented Jun 25, 2020

Cirq has the requirement google-api-core[grpc] >= 1.14.0, < 2.0.0dev as well as protobuf==3.8.0 (as of the latest relase; protobuf >= 3.12.0, in master), while the google-api-core recently updated its requirement to protobuf >= 3.12.0 as of v.1.21.0. An error will thus occur if using the latest version of google-api-core, which can be fixed by simply installing an older version of google-api-core.

See related Cirq issue at quantumlib/Cirq#3110.
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