原文 https://blog.csdn.net/weixin_37595559/article/details/78903957
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<p>出现该原因是因为<span style="font-family:Arial, '宋体';font-size:14px;">内存不够用了，所以需要 修改java vm 的内存；</span></p>
<p><span style="font-family:Arial, '宋体';"><span style="font-size:14px;">打开intellij IDE 的 Run 选项<img src="https://img-blog.csdn.net/20171226165343954?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvd2VpeGluXzM3NTk1NTU5/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt=""></span></span></p>
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<p><span style="font-family:Arial, '宋体';"><span style="font-size:14px;">2.然后再选择edit configuration 进入到vm options</span></span></p>
<p><span style="font-family:Arial, '宋体';"><span style="font-size:14px;"><img src="https://img-blog.csdn.net/20171226165919420?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvd2VpeGluXzM3NTk1NTU5/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt=""><br></span></span></p>
<p><span style="font-family:Arial, '宋体';"><span style="font-size:14px;">如果出现报错如下：</span></span></p>
<h1 class="csdn_top" style="font-family:'PingFang SC', 'Microsoft YaHei', SimHei, Arial, SimSun;line-height:38px;color:rgb(44,48,51);">
<span style="font-size:18px;">Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in</span></h1>
<div><span style="font-size:18px;">则只是需要将后面的-xx:MaxperSize:***去掉即可。</span></div>
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