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Matplotlib: “Unknown projection '3d'” error

... and am trying to run one of there example scripts. However I run into the error detailed below. What am I doing wrong? 5 ...
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Openssl is not recognized as an internal or external command

... Getting error " Both context and applicationId must be non-null", when used above code. @SagarChavada – Yesha Shah Nov 3 '18 at 7:11 ...
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MySQL: Insert record if not exists in table

...-----+ And so on... Update: To prevent #1060 - Duplicate column name error in case two values may equal, you must name the columns of the inner SELECT: INSERT INTO table_listnames (name, address, tele) SELECT * FROM (SELECT 'Unknown' AS name, 'Unknown' AS address, '022' AS tele) AS tmp WHERE ...
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How does setting baselineAligned to false improve performance in LinearLayout?

I was just building some UI in xml, and Lint gave me a warning and said to set android:baselineAligned to false to improve performance in ListView. ...
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Unique constraint on multiple columns

How do I add a unique constraint for columns fcode, scode, dcode with t-sql and/or management studio ? fcode, scode, dcode must be unique together. ...
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GCC compile error with >2 GB of code

... The error occurs because you have too much CODE, not data! This is indicated by for example __libc_csu_fini (which is a function) being referenced from _start and the relocation is truncated to fit. This means that _start (the pr...
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How do I manage MongoDB connections in a Node.js web application?

....then(() => bootMyApplication()) .catch((e) => { console.error(e); // Always hard exit on a database connection error process.exit(1); }); When in flight your app can simply call get() when it needs a DB connection. const db = require('./myAwesomeDbModule'); ...
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Firefox 'Cross-Origin Request Blocked' despite headers

...le cross-origin request, and Firefox is consistently blocking it with this error: 15 Answers ...
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What's the best way to validate an XML file against an XSD file?

... How do i use an ErrorHandler with the above? Is is a case of just creating the ErrorHandler and associating it with the validator? i.e. validator.SetErrorHandler() as in the example in this SO question stackoverflow.com/questions/4864681/…...
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?

What is the difference between NoClassDefFoundError and ClassNotFoundException ? 15 Answers ...