packages

问题 I messed up my R installation while trying to move packages from the root to the user account. I tried unistalling (with --purge) and re-installing R (r-base r-base-dev) via the apt-get install. But I get the error /usr/bin/R: line 236: /usr/lib/R/etc/ldpaths: No such file or directory /usr/bin/R: line 259: /usr/lib/R/bin/exec/R: No such file or directory How can I fix this? 回答1: I had the same problems as yours and get it fixed by using this instraction after the uninstallation: dpkg -l

问题 I am developing two android apps with android studio and for some reason I want just one of these apps can be installed on a device. I think I should check the package name of second app and prevent it from installing. Is there any way to do that? thanks. 回答1: You can not prevent any app from being installation. Instead you can stop your app from being running. I mean, when your app starts, check if specific application is installed, and if so stop your application. 回答2: An ordinary app

问题 My search path for Python packages contains an entry for my system's site packages in /Library/Python/2.7/site-packages This has always been there, but now that I have installed Homebrew's Python, it has been suggested that I remove it (assuming this is safe and makes sense) from the package search path for Homebrew's Python. But I'm not sure how (or how it even gets there: I don't add it to PYTHONPATH , for example). How do I remove my system's site-packages from the search path that Brew's

问题 What are the naming conventions for packages with names that contain more than one word? Lets say I have a package named 'garden hose', should I name it garden_hose, gardenHose or simply gardenhose? I know that packages are normally named with lower-case letters only. I only see package names made out of one word in the api, are there any conventions for package names made out of several words? With classes we have: ClassName. For instance RaceCar, what about packages? I have a package named

问题 I have my project structure something like this. |--daos | | | |--MyDBReader.java But I want to change it into this one. daos | |--readers | | | |--MyDBReader.java Can anyone tell me the preffered way to do that with intellij preserving all dependencies and usages? 回答1: There are two ways (AFAIK) Method One Right click the class in the project explorer and Refactor -> Move or Select the Class in the project explorer press F6 Then select To Package enter the new package name and press Refactor

问题 If I define a package object package com.something.else package object more { val time = System.currentTimeMillis // ... other stuff ... } which is then imported somewhere in the source code. import com.something.else.more When is this object (and its members) initialized/constructed? In other words, what determines the value of more.time ? Is it evaluated when the program first starts? Or the first time it is accessed? Or the first time more is accessed? 回答1: It's easy to check: package

问题 I am experiencing a hard time in installing the blotter and quantstrat packages from Github. Most helps I can find online are quite outdated issued back then when they are hosted on sourceforge. I try to use the install_github() function and it returns error below. (In fact there is similar error when I try R-Forge) Can anyone provide a clue on what is happening here? install_github("braverock/blotter") Downloading GitHub repo braverock/blotter@master from URL https://api.github.com/repos

问题 I want to use Django-Allauth, so I installed as following and it works perfectly in my laptop localhost; but when I pull it in my server, I encounter with the following error: No module named 'allauth.account.context_processors' What should I do? # Django AllAuth TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [os.path.join(BASE_DIR, 'templates')], 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ # Already defined Django-related contexts here #

问题 I was wondering what the best practice would be to add or adjust some functionality to installed packages. I think extending the existing classes sounded like a good idea when I started this, but what seemed to be a small addition seems to result in many additions. Would this be the right way to go, and what's the next step? E.g. I am using the Laravel/Passport package. Without going too much into detail on the why, a user with a client can send an e-mail to invite an other user. This user

问题 I need to execute EXECUTE dbms_mview.refresh('MATERIALIZED_VIEW_NAME') calling this package from the model but when I try to do it with a statement like this one: $refresh = $this->db->query('EXECUTE DBMS_MVIEW.REFRESH(\'CRM_LISTADO_CONTACTOS\')'); But I receive a database error from this line in the model. I've also tried with db->store_procedure but it didn't work either. Any clue how to call a package? Thanks a lot! 回答1: Well, I've never heard of CodeIgniter before, but my educated guess