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What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?

... CAUTION mentioned in the documentation: http://developer.android.com/guide/publishing/app-signing.html#signapp Caution: As of JDK 7, the default signing algorithim has changed, requiring you to specify the signature and digest algorithims (-sigalg and -digestalg) when you sign an APK. I...
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Should I use alias or alias_method?

... The rubocop gem contributors propose in their Ruby Style Guide: Prefer alias when aliasing methods in lexical class scope as the resolution of self in this context is also lexical, and it communicates clearly to the user that the indirection of your alias will not be alte...
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Remove first element from $@ in bash [duplicate]

... Use shift? http://tldp.org/LDP/Bash-Beginners-Guide/html/sect_09_07.html Basically, read $1 for the first argument before the loop (or $0 if what you're wanting to check is the script name), then use shift, then loop over the remaining $@. ...
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What's the “Content-Length” field in HTTP header?

...f the response the connection must be closed. The following resource is a guide that I found very useful when learning about HTTP: HTTP Made Really Easy. share | improve this answer | ...
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Setup a Git server with msysgit on Windows [closed]

... After following Tim Davis' guide and Steve's follow-up, here is what I did: Server PC Install CopSSH, msysgit. When creating the CopSSH user, uncheck Password Authentication and check Public Key Authentication so your public/private keys will work. ...
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Swift: Testing optionals for nil

... From swift programming guide If Statements and Forced Unwrapping You can use an if statement to find out whether an optional contains a value. If an optional does have a value, it evaluates to true; if it has no value at all, it evalu...
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Large Object Heap Fragmentation

... The strings are a mix of Guids (which we use) and string keys which are readily identifiable. I can see where they are generated, but they are never (directly) added to object arrays and we do not explicitly create 128 element arrays. These small arr...
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How can I find and run the keytool

I am reading an development guide of Facebook Developers at here 19 Answers 19 ...
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MongoDB relationships: embed or reference?

...ers for a threshold does contain some additional pointers that should help guide your decision. – Chris Bloom Oct 24 '17 at 21:05 add a comment  |  ...
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Use 'class' or 'typename' for template parameters? [duplicate]

... "C++ Templates The Complete Guide" David Vandevoorde Nicolai M. Josuttis. 2.1.1 – bartolo-otrit Sep 24 '11 at 10:22 ...