# Unresolved reference: toDoubleOrNull , ceil and few other error are shown in Android studio

**URL:** <https://discuss.kotlinlang.org/t/unresolved-reference-todoubleornull-ceil-and-few-other-error-are-shown-in-android-studio/23507>\
**Category:** Support\
**Created:** [November 21, 2021, 12:21pm UTC](https://discuss.kotlinlang.org/t/unresolved-reference-todoubleornull-ceil-and-few-other-error-are-shown-in-android-studio/23507 "2021-11-21T12:21:15Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ayosuva](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.kotlinlang.org/ayosuva/32/8986_2.png) [@ayosuva](https://discuss.kotlinlang.org/u/ayosuva)\
**Post date:** [November 21, 2021, 12:21pm UTC](https://discuss.kotlinlang.org/t/unresolved-reference-todoubleornull-ceil-and-few-other-error-are-shown-in-android-studio/23507/1 "2021-11-21T12:21:15Z")

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Unresolved reference: toDoubleOrNull , ceil and few other errors are shown in Android studio but it is running without any issues. can someone help me to get rid of these errors?

 ![Screenshot 2021-11-21 at 12.17.21 pm](https://us1.discourse-cdn.com/flex019/uploads/kotlinlang/original/2X/2/25a3f892d6889592f23e2a1ec1812f351c0a4d13.png)