I am doing android development. I could not solve this problem.
I've tried making a new project and see what is happening there, but it's still not showing any preview.
I feel like I'm missing something silly.
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Seems to be a bug https://stackoverflow.com/q/50777139/2308683 – OneCricketeer Jun 10 '18 at 17:22
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Can you post your layout file – Psypher Jun 10 '18 at 17:23
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and it works when app is running on device? – Sahdeep Singh Jun 10 '18 at 17:23
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1Yes @SahdeepSingh – Pie Jun 10 '18 at 17:24
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1In the top right corner of the layout pane, you have a red icon which means there's layout errors. What are they? – OneCricketeer Jun 10 '18 at 17:25
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Failed to load AppCompat ActionBar with unknown error. @cricket_007 – Pie Jun 10 '18 at 17:29
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– Pie Jun 10 '18 at 17:33
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Can you please show your gradle dependencies? https://stackoverflow.com/q/44449275/2308683 – OneCricketeer Jun 10 '18 at 17:35
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Why downvote? Please type reason in comments – Pie Jun 10 '18 at 18:19
1 Answers
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I have answered this problem in this post:
It is some kind of bug. I had the same problem. I searched so much and I finally found that appcompat-v7:28.0.0-alpha3 has some bug with "Design View" part of Android Studio.
So I suggest to change com.android.support:appcompat-v7:28.0.0-alpha3 to com.android.support:appcompat-v7:28.0.0-alpha1 version in the build.gradle (Module:app) and then everything is OK.
Of course you should have internet access to download com.android.support:appcompat-v7:28.0.0-alpha1
Hossein Seifi
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