我得到了这个编译错误:
main.cpp:34:74: error: cannot allocate an object of abstract type ‘HouseClass’
mapEntVec.push_back(new HouseClass(PixelLocationClass(120, 220), 100000));
^
In file included from main.cpp:2:0:
HouseClass.h:17:7:
我在签署要发布到Sonatype Nexus Repo的工件时遇到了问题:
下面是我的build.gradle
plugins {
id 'java'
id 'idea'
id 'maven-publish'
id 'signing'
id "com.palantir.git-version" version "0.12.3"
id "io.github.gradle-nexus.publish-plugin" version
为什么~/.sbt/0.13/plugins/build.sbt中定义的插件不包括在sbt tasks -V列表中?
jacek:~/oss/scalania
$ sbt about
[info] Loading global plugins from /Users/jacek/.sbt/0.13/plugins
[info] Loading project definition from /Users/jacek/oss/scalania/project
[info] Set current project to scalania (in build file:/Users/jacek/os
我正在尝试将我的Java库发布到Maven Central。其中一部分涉及使用signing gradle插件对工件进行签名。我需要在不使用密钥环文件的情况下签名,因为我不能提供对密钥环文件的CI安全访问。
但是,当我这样做时,我的构建失败了:
FAILURE: Build failed with an exception.
* What went wrong:
Could not evaluate onlyIf predicate for task ':signArchives'.
> Could not read PGP secret key
我做错了什么?我想这与
我使用play new hello命令创建了一个新的应用程序,并在目录中输入cd。当我在目录中键入play时,我收到以下错误:
akshay@Akshay:~/play/testn$ play -help
Java HotSpot(TM) Server VM warning: ignoring option MaxPermSize=512M; support was removed in 8.0
Getting org.scala-sbt sbt 0.13.0 ...
:: retrieving :: org.scala-sbt#boot-app
confs: [default]
我正在尝试为AWS键空间编写一个Spark。随机地,有些记录正在更新,有些记录正在抛出此异常。
com.datastax.oss.driver.api.core.type.codec.CodecNotFoundException: Codec not found for requested operation: [INT <-> java.lang.String]
at com.datastax.oss.driver.internal.core.type.codec.registry.CachingCodecRegistry.createCodec(CachingCodecRegi
#include <sstream>
#include <string>
using namespace std;
template<typename T>
string ToString(const T& obj)
{
ostringstream oss;
oss << obj;
//
// oss will never be used again, so I should
// MOVE its underlying string.
//
// However, below