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<div class="hidden-warning"><a href="https://docs.haskellstack.org/"><img src="https://cdn.jsdelivr.net/gh/commercialhaskell/stack/doc/img/hidden-warning.svg"></a></div>
# Non-standard project initialization
You may need to configure Stack to work with an existing project that has one or
more Cabal files but no Stack project-level configuration file (`stack.yaml`, by
default).
## The `stack init` command
The `stack init` command:
* finds all of the Cabal files in your current directory and subdirectories
(unless you use `--ignore-subdirs`) and determines the packages and versions
they require
* Finds the best combination of snapshot and package flags that allows
everything to compile with minimum external dependencies
* Tries to look for the best matching snapshot from latest Haskell LTS, latest
Stackage Nightly, and other Haskell LTS, in that order
If `stack init` finds a match, it will generate a `stack.yaml` file.
You can specify the directory, or directories to include in the search for
Cabal files.
### The `stack init --force` flag
Set the flag to force the over-writing of any existing `stack.yaml` file.
### The `stack init --ignore-subdirs` flag
Set the flag to not search for Cabal files in subdirectories.
### The `stack init --omit-packages` flag
Set the flag to exclude any conflicting or incompatible user packages.
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