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<?xml-stylesheet type="text/xsl" href="https://community.appian.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>unable to start Appian</title><link>https://community.appian.com/discussions/f/administration/19264/unable-to-start-appian</link><description>Hi All, 
 
 While starting the Appian 19.4 i am getting the below error message: 
 &amp;quot;Unable to start service QuorumPeerMain java.io.IOException: Cannot run program &amp;quot;null/bin/java&amp;quot; (in directory &amp;quot;/usr/local/appian/services/zookeeper-3.5.6/bin&amp;quot;): error=2</description><dc:language>en-US</dc:language><generator>Telligent Community 12</generator><item><title>RE: unable to start Appian</title><link>https://community.appian.com/thread/77089?ContentTypeID=1</link><pubDate>Fri, 09 Oct 2020 15:25:51 GMT</pubDate><guid isPermaLink="false">d3a83456-d57b-489c-a84c-4e8267bb592a:b9928f71-7ccb-4563-9714-02a23b1829dc</guid><dc:creator>Tony Marziano</dc:creator><description>&lt;p&gt;Issue is with your JRE. Using the Appian JAVA you need to make sure the JAVA_HOME is set and also the binaries in the PATH variable as follows (example on linux):&lt;/p&gt;
&lt;p&gt;export JAVA_HOME=/path/to/appian/java&lt;/p&gt;
&lt;p&gt;export PATH=$JAVA_HOME/bin:$PATH:&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;Make sure the appian install directory has sufficient permissions. You can set the permissions:&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;
&lt;p&gt;chmod 775 -R /path/to/appian&lt;/p&gt;
&lt;p&gt;Hope this helps&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>