windows Ant exec - 无法运行程序 'start' CreateProcess 错误=2
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Ant exec - cannot run program 'start' CreateProcess error=2
提问by Srinivas A
I can't run the windows 'start' using ant exec. Ant version 1.7.1.
我无法使用 ant exec 运行 Windows 'start'。蚂蚁版本 1.7.1。
Here is sample build.xml to recreate the problem
这是重新创建问题的示例 build.xml
<project name="test" basedir="." default="test-target">
<target name="test-target">
<exec executable="start">
<arg line="cmd /c notepad" />
</exec>
</target>
</project>
getting the following error when I execute this build file:
执行此构建文件时出现以下错误：
Execute failed: java.io.IOException: Cannot run program "start": Cre
ateProcess error=2, The system cannot find the file specified
My env is Windows XP, Ant 1.7.1 I am trying to run this from DOS prompt. I rule out any PATH related issues, as I could run 'start cmd /c notepad' from DOS promt manually.
我的环境是 Windows XP，Ant 1.7.1 我试图从 DOS 提示符运行它。我排除了任何与 PATH 相关的问题，因为我可以从 DOS 提示符手动运行“start cmd /c notepad”。
Any suggestions on how to fix this?
对于如何解决这个问题，有任何的建议吗？
cheers a s
欢呼作为
回答by beny23
start is not an executable but is an internal command of the cmd.exe shell, so to start something you'd have to:
start 不是可执行文件，而是 cmd.exe shell 的内部命令，因此要启动某些操作，您必须：
<exec executable="cmd.exe">
<arg line="/c start notepad" />
</exec>
EDIT:
编辑：
For spawning multiple windows, this should work:
对于生成多个窗口，这应该有效：
<target name="spawnwindows">
<exec executable="cmd.exe" spawn="yes">
<arg line="/c start cmd.exe /k echo test1" />
</exec>
<exec executable="cmd.exe" spawn="yes">
<arg line="/c start cmd.exe /k echo test2" />
</exec>
</target>
but you mentioned that spawn="true" is not applicable for your environment, why is that?
但是您提到 spawn="true" 不适用于您的环境，这是为什么呢？
回答by cNoNim
my solution
我的解决方案
<project name="test" basedir="." default="test-target">
<target name="start-init">
<exec executable="where" outputproperty="START">
<arg line="start" />
</exec>
</target>
<target name="test-target">
<exec executable="${START}">
<arg line="cmd /c notepad" />
</exec>
</target>
</project>
回答by cNoNim
How about <exec executable="start.exe">? Or start.bat ?
怎么样<exec executable="start.exe">？还是 start.bat ？
Also, where is basedir="."pointing to? If you place a <echo message="basedir = ${basedir}"/>just before your <exec>tag, does it print the correct folder (the one with the "start" program in it)?
还有，basedir="."指向哪里？如果您<echo message="basedir = ${basedir}"/>在<exec>标签之前放置一个，它是否会打印正确的文件夹（其中包含“开始”程序的文件夹）？
Additionally, you could add <echoproperties />before <exec>to see all visible properties.
此外，您可以添加<echoproperties />before<exec>以查看所有可见属性。
