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moved known issues to FAQ docs
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jameslamb committed Mar 4, 2020
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4 changes: 1 addition & 3 deletions R-package/README.md
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Expand Up @@ -168,6 +168,4 @@ Projects listed here are not maintained or endorsed by the `LightGBM` developmen
Known Issues
------------

### `error in data.table::data.table()...argument 2 is NULL`

If you experiencing this error when running `lightgbm`, you may be facing the same issue reported in [#2715](https://github.com/microsoft/LightGBM/issues/2715). If you use `lgb.dl()` to build from source (i.e. not using pre-compiled dll), you need to upgrade your version of `data.table` to at least version 1.12.0.
For information about known issues with the R package, see the [R-package section of LightGBM's main FAQ page](https://lightgbm.readthedocs.io/en/latest/FAQ.html#r-package).
8 changes: 6 additions & 2 deletions docs/FAQ.rst
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Expand Up @@ -201,12 +201,16 @@ Run ``lgb.unloader(wipe = TRUE)`` in the R console, and recreate the LightGBM da
Due to the pointers, choosing to not wipe variables will not fix the error.
This is a known issue: `Microsoft/LightGBM#698 <https://github.com/microsoft/LightGBM/issues/698>`__.

2. I used ``setinfo``, tried to print my ``lgb.Dataset``, and now the R console froze!
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2. I used ``setinfo()``, tried to print my ``lgb.Dataset``, and now the R console froze!
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Avoid printing the ``lgb.Dataset`` after using ``setinfo``.
This is a known bug: `Microsoft/LightGBM#539 <https://github.com/microsoft/LightGBM/issues/539>`__.

3. `error in data.table::data.table()...argument 2 is NULL`

If you experiencing this error when running `lightgbm`, you may be facing the same issue reported in `#2715 <https://github.com/microsoft/LightGBM/issues/2715>`_. If you use ``lgb.dl()`` to build from source (i.e. not using pre-compiled dll), you need to upgrade your version of ``data.table`` to at least version 1.12.0.

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Python-package
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