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OperationalError at /admin/products/product/add/ no such table: main.auth_user__old DJANGO [closed]

main.auth_user__old in django tutorial going through mosh created a web server.When saving some polls or products or set i get this error instead of going to be saved on the site. Heres the error OperationalError at /admin/products/product/add/ no such table: main.auth_user__old Request Method: POST Request URL: http://127.0.0.1:8000/admin/products/product/add/ Django Version: 2.1 Exception Type: OperationalError Exception Value: […]

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Development

move MainActivity to HomeFragment

I am creating a Dictionary. But created in Main Activity. and i want to move MainActivity event to HomeFragment. How can i move these activity from MainActivity to HomeFragment? I tried to move by create new class HomeFragment2 in HomeFragment.java but List doesn’t appear and I have this error. E/RecyclerView: No adapter attached; skipping layout […]

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Development

Mule 4/DW 2.0/postgresql

I need help with fixing the error message posted below (Can’t infer the SQL type to use for an instance of java.util.ArrayList. Use setObject() with an explicit Types value to specify the type to use.) The input payload seems to be all string data types. But why does Mule 4 or postgresql think they are […]

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[ Polls & Surveys ] Open Question : Do you speak, read, and write any other languages beside English?

I can speak, read, and write four languages. I can speak Japanese, English, Cantonese, and Mandarin. I can read and write English, Japanese, and Chinese. I grew up in Hong Kong, San Francisco, and Hokkaido, Japan. I am Chinese.  I grew up in Hong Kong, San Francisco, and Hokkaido, Japan. I am Chinese.  Whoops I […]

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Development

WPF Performance problem in Localization with large Canvas which is full of DynamicResource

We are working on single UserControl subway map which supports localization for 4 languages(English, Chinese, Japanese, Korean) for our legacy application which already provides subway map with single png file. We chosed ResourceDictionary based globalization which mentioned here(https://www.codeproject.com/Articles/515960/Globalization-in-WPF-using-ResourceDictionary). We drew the subway line with Path and made every 616 station names with seperated TextBlocks like […]