development-environment

问题 This question already has answers here : JAVA invalid maximum heap size. The specified size exceeds the maximum representable size (2 answers) Closed 1 year ago . I'm trying to run Cassandra on my computer, but I keep getting the following error message: Invalid initial heap size: -Xms4096M The specified size exceeds the maximum representable size. Error: Could not create the Java Virtual Machine. Error: A fatal exception has occurred. Program will exit. Anyone know why and how to fix this? I

问题 I am using windows 10 as OS in development environment and Ubuntu 18.04 (AWS) in production. I deployed my application recently (15 days) but now when I see the django is no more serving media and static files in the development server while it is running and serving perfectly in the production server (with DEBUG=True in both the servers). I am using Nginx server with gunicorn at the production server. I have tried almost every answer in the StackOverflow to counter this issue but it is not

问题 I am using windows 10 as OS in development environment and Ubuntu 18.04 (AWS) in production. I deployed my application recently (15 days) but now when I see the django is no more serving media and static files in the development server while it is running and serving perfectly in the production server (with DEBUG=True in both the servers). I am using Nginx server with gunicorn at the production server. I have tried almost every answer in the StackOverflow to counter this issue but it is not

问题 I have a set of STI subclasses inheriting from a User base class. I am finding that under certain conditions inside a subclass' definition, queries on the subclasses do not correctly use the type condition. class User < ActiveRecord::Base # ... end class Admin < User Rails.logger.info "#{name}: #{all.to_sql}" # ... end When loading the Rails console in development, it does what I would expect: Admin: SELECT `users`.* FROM `users` WHERE `users`.`type` IN ('Admin') But when hitting the app

问题 I have a special project and I haven't been able to find any information on how I can achieve this. So on this website companies can register and login. When a company is logged in they have an overview of devices and groups where devices can be divided in different groups for easy recognition. Now the hard part of the website is template management. Each device will display a template which could be a general specified template, a template that was assigned to a specific group or to an

问题 I have a special project and I haven't been able to find any information on how I can achieve this. So on this website companies can register and login. When a company is logged in they have an overview of devices and groups where devices can be divided in different groups for easy recognition. Now the hard part of the website is template management. Each device will display a template which could be a general specified template, a template that was assigned to a specific group or to an

来源： https://stackoverflow.com/questions/57620215/could-not-get-google-app-id-in-google-services-file-from-build-environment-err

来源： https://stackoverflow.com/questions/57620215/could-not-get-google-app-id-in-google-services-file-from-build-environment-err

问题 I've used Git with Visual Studio for about 9 months, and have searched online for how to do this but still haven't found this problem addressed. Maybe I've been searching with the wrong keywords. By "work spaces", I am referring to the developer's environment of tabs, windows, breakpoints and bookmarks within Visual Studio that a user might set during the time (s)he works on a story. I am not referring to Visual Studio Code's project-less environment, but Visual Studio's project-based

问题 I've installed the Android Developer tools as per the official instructions. Why doesn't the tab appear in Windows->Preferences , as they said it should? 回答1: This won't fix your issue directly, but I suggest your take a look at the MOTODEV STUDIO for Android. Essentially, it's a customized Eclipse IDE with all the Android tools preinstalled and many more of their own tools for app validation. I find their tools usefull, especially the code snippets and the app validator. I believe you will