尝试运行 pycharm-community-4.5 时出现 Java 问题

Question

我刚刚将 pycharm-community-4.5 安装到我的 Ubuntu 14.04（64 位）中。安装后，我运行了/opt/pycharm-community-4.5/bin$ ./pycharm.sh运行 pycharm的命令，但终端向我显示了一些错误，如下所示 -

Unrecognized VM option MaxPermSize=350m
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

这是我的结果java -version：

java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

我如何解决它？

Answer 1

打开文件 pycharm64.vmoptions

nano /opt/pycharm-community-4.5/bin/pycharm64.vmoptions

并#在行首添加一个

# -XX:MaxPermSize=350m

打开文件 pycharm.vmoptions

nano /opt/pycharm-community-4.5/bin/pycharm.vmoptions

并#在行首添加一个

# -XX:MaxPermSize=250m

在 Java 8.0 中删除了 MaxPermSize 支持，但错误消息

Unrecognized VM option MaxPermSize=350m
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

看起来不像 Oracle Java 8 或 OpenJDK 8。

PyCharm starterpycharm.sh尝试查找 Java：

# ---------------------------------------------------------------------
# Locate a JDK installation directory which will be used to run the IDE.
# Try (in order): PYCHARM_JDK, ../jre, JDK_HOME, JAVA_HOME, "java" in PATH.
# ---------------------------------------------------------------------
if [ -n "$PYCHARM_JDK" -a -x "$PYCHARM_JDK/bin/java" ]; then
  JDK="$PYCHARM_JDK"
elif [ -x "$IDE_HOME/jre/bin/java" ] && "$IDE_HOME/jre/bin/java" -version > /dev/null 2>&1 ; then
  JDK="$IDE_HOME/jre"
elif [ -n "$JDK_HOME" -a -x "$JDK_HOME/bin/java" ]; then
  JDK="$JDK_HOME"
elif [ -n "$JAVA_HOME" -a -x "$JAVA_HOME/bin/java" ]; then
  JDK="$JAVA_HOME"
else
  JAVA_BIN_PATH=`which java`
  if [ -n "$JAVA_BIN_PATH" ]; then
    if [ "$OS_TYPE" = "FreeBSD" -o "$OS_TYPE" = "MidnightBSD" ]; then
      JAVA_LOCATION=`JAVAVM_DRYRUN=yes java | "$GREP" '^JAVA_HOME' | "$CUT" -c11-`
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    elif [ "$OS_TYPE" = "SunOS" ]; then
      JAVA_LOCATION="/usr/jdk/latest"
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    elif [ "$OS_TYPE" = "Darwin" ]; then
      JAVA_LOCATION=`/usr/libexec/java_home`
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    fi

    if [ -z "$JDK" -a -x "$READLINK" -a -x "$XARGS" -a -x "$DIRNAME" ]; then
      JAVA_LOCATION=`"$READLINK" -f "$JAVA_BIN_PATH"`
      case "$JAVA_LOCATION" in
        */jre/bin/java)
          JAVA_LOCATION=`echo "$JAVA_LOCATION" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME"`
          if [ ! -d "$JAVA_LOCATION/bin" ]; then
            JAVA_LOCATION="$JAVA_LOCATION/jre"
          fi
          ;;
        *)
          JAVA_LOCATION=`echo "$JAVA_LOCATION" | "$XARGS" "$DIRNAME" | "$XARGS" "$DIRNAME"`
          ;;
      esac
      if [ -x "$JAVA_LOCATION/bin/java" ]; then
        JDK="$JAVA_LOCATION"
      fi
    fi
  fi
fi

1. $PYCHARM_JDK
2. $IDE_HOME/jre/bin/java
3. $JDK_HOME
4. $JAVA_HOME

确保您使用的是您想要使用的 Java 版本。