warnings

问题 Im writing a multiplexor of 4 bits as input and 1 as output. I have tray several ways, using cases, if, etc. but I keep getting this error: WARNING:PhysDesignRules:367 - The signal <A<2>_IBUF> is incomplete. The signal does not drive any load pins in the design. WARNING:Par:288 - The signal A<2>_IBUF has no load. PAR will not attempt to route this signal. WARNING:Par:283 - There are 1 loadless signals in this design. This design will cause Bitgen to issue DRC warnings. And when I program in

问题 After upgrading to Perl 5.24.4 we repeatedly get this error in logs (without pointing the filename and line number): Unable to flush stdout: Broken pipe We have no idea what causes this error. Is there any advice how to understand the cause of the error? 回答1: The error comes from perl.c, line 595: PerlIO_printf(PerlIO_stderr(), "Unable to flush stdout: %s", Strerror(errno)); This line is part of perl_destruct, which is called to shut down the perl interpreter at the end of the program. As

问题 When I installed Phalcon 2.0.13 according to the https://docs.phalconphp.com/en/latest/reference/install.html description and I wanted to launch my test script then I got the following error (literally it is just a warning but it causes Phalcon not to be loaded which causes errors): { PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php/20131226/phalcon.so' - /usr/lib/php/20131226/phalcon.so: undefined symbol: php_pdo_get_dbh_ce in Unknown on line 0 } What is this symptom

问题 I have a relatively simple linear regression lambda in AWS. Each instance the function is called the logs display the following: /opt/python/sklearn/externals/joblib/_multiprocessing_helpers.py:38: UserWarning: [Errno 38] Function not implemented. joblib will operate in serial mode warnings.warn('%s. joblib will operate in serial mode' % (e,)) I suspect this is due to sklearn running on a lambda (i.e. 'serverless') and trying to determine it's multi-processing capabilities as per this

问题 When having many data extensive apps running in the background (sometimes none), whenever I present the UIImagePickerController, i get a memory warning, usually between 1 and 2. I'm sure its not my code, because it i recieve that memory warning as soon as the camera view is presented. I'm keeping my instance of the UIImagePickerController in the app delegate (after reading countless articles). Anyone have any advice? 回答1: A memory warning isn't a sign of a bug necessarily. Bringing up the

问题 I got this warning a lot of times for private methods. How to make Eclipse show the same (or similar) warning for public, default and protected methods? 回答1: Doing it for private methods is easy because the scope to search for usage of the method is limited (only the class itself), and because the warning makes sense: since it's private, nobody from the outside can call the method, and since it's not called from inside the project, the method is probably useless, hence the warning. Doing it

问题 When the Boost library/headers is used with VC++ 9 compilers (Visual C++ 2008 Express Edition or Visual Studio 2008), a lot of benign warnings are generated. They are of 2 kinds: Warning about the Wp64 setting. Warning about the compiler version. How can I turn off these warnings? 回答1: Warning about the Wp64 setting. Turn off the /Wp64 setting which is set by default. You can find it in Project Properties -> C/C++ -> General . Warning about the compiler version. Go to the Boost trunk (online)

问题 I want to disable the setState message warning On the layout 1 : My constructor : constructor(props){ super(props); //Constructeur this.lestachesitemsRef=getDatabase().ref('n0rhl66bifuq3rejl6118k8ppo/lestaches'); this.lestachesitems=[]; this.state={ //Debutdustate lestachesSource: new ListView.DataSource({rowHasChanged: (row1, row2)=>row1 !== row2}), Prenom: '', Nom: '',} } My function : ajouter= () => { if( (this.state.Nom !== '') && (this.state.Prenom !== '')) { this.lestachesitemsRef.push(

问题 I have a wildfly server 8 and in the log I get periodicaly those two warnings : 2014-06-10 12:01:19,255 WARN [org.jboss.jca.core.tx.jbossts.XAResourceRecoveryImpl] (Periodic Recovery) IJ000904: No security domain defined for crash recovery: java:jboss/datasources/sevicesDS 2014-06-10 12:01:19,256 WARN [org.jboss.jca.core.tx.jbossts.XAResourceRecoveryImpl] (Periodic Recovery) IJ000905: Subject for crash recovery was null: java:jboss/datasources/sevicesDS my datasource config: <xa-datasource

问题 Having installed LLVM on Ubuntu 16.04 using the command: sudo apt-get install clang llvm I get the following error when compiling: nlykkei@nlykkei-VirtualBox:~$ clang++ -g toy.cpp `llvm-config --cxxflags --ldflags --system-libs --libs` -o toy warning: unknown warning option '-Wno-maybe-uninitialized'; did you mean '-Wno-uninitialized'? [-Wunknown-warning-option] 1 warning generated. To be specific, I follow the tutorial: http://llvm.org/docs/tutorial/LangImpl03.html on the LLVM website. The