# Placeholder Error on Build

**URL:** <https://devforum.zoom.us/t/placeholder-error-on-build/17441>\
**Category:** Android\
**Created:** [May 13, 2020, 12:25pm UTC](https://devforum.zoom.us/t/placeholder-error-on-build/17441 "2020-05-13T12:25:06Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![stntz](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@stntz](https://devforum.zoom.us/u/stntz)\
**Post date:** [May 13, 2020, 12:25pm UTC](https://devforum.zoom.us/t/placeholder-error-on-build/17441/1 "2020-05-13T12:25:06Z")

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I am creating a binding for Xamarin with the android lib and I encounter this error after binding

Error APT2000: multiple substitutions specified in non-positional format; did you mean to add the formatted=“false” attribute?. (APT2000)

Looking at the values strings, I see some strings with positions not specified as seen in the screenshot below

Version: v4.6.21666.0429

**Screenshots**

 ![Screenshot 2020-05-13 at 13.15.46](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/8/8729424a369089c81d0c7f20696ec4e6e1185bba.png)

**Additional context**  
This is in all the values file in mobilertc lib. Can this be fixed in the next version please.

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<div class="post-metadata">

**Author:** ![stntz](https://avatars.discourse-cdn.com/v4/letter/s/9de0a6/32.png) [@stntz](https://devforum.zoom.us/u/stntz)\
**Post date:** [May 15, 2020, 9:11am UTC](https://devforum.zoom.us/t/placeholder-error-on-build/17441/2 "2020-05-15T09:11:57Z")

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@carson.zoom Can you take a look at this for me please

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<div class="post-metadata">

**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\
**Post date:** [May 22, 2020, 6:03am UTC](https://devforum.zoom.us/t/placeholder-error-on-build/17441/3 "2020-05-22T06:03:41Z")

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Hi [stntz](https://devforum.zoom.us/u/stntz),

Thanks for the post and pardon the late response. May I inquire what is the `compileSdkVersion` and the `buildToolsVersion` that you are using? Could you have a try with the following configurations and see if it helps?

```auto
compileSdkVersion 29
buildToolsVersion "29.0.2"

```

Thanks!

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<div class="post-metadata">

**Author:** ![DeveloperBot](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/developerbot/32/12632_2.png) [@DeveloperBot](https://devforum.zoom.us/u/DeveloperBot)\
**Post date:** [August 21, 2020, 9:28pm UTC](https://devforum.zoom.us/t/placeholder-error-on-build/17441/4 "2020-08-21T21:28:49Z")

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Closed on August 21, 2020, 9:28pm UTC