... | ... | @@ -219,6 +219,19 @@ submodule path '/Users/.../ghc/.arc-linters/arcanist-external-json-linter' faile |
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Failed to clone '.arc-linters/arcanist-external-json-linter'. Retry scheduled
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```
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### Unhappy Happy
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Errors with the stage1 parser like the following can be worked around by
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downgrading to `happy-1.19.9` or older, see #18571 for more on this.
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```
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compiler/stage1/build/Parser.hs:1445:48: error:
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Not in scope: type variable ‘a’
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1445 | newtype HappyWrap205 = HappyWrap205 (([Located a],Bool))
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```
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### Starting Dirty
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If you've built GHC from source for another version of GHC beware of dirty generated files in the
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... | ... | |