我尝试了“mvn install”来构建一个项目。该项目可以在一个虚拟机上成功构建，但无法在另一个虚拟机上构建。
构建失败的警告消息：
C:\www\instantynode\src/public/avatar/tmp_1458064183594_la5v9vcuc27hw7b9.png
file exists!
trying...
events.js:141
throw er; // Unhandled 'error' event
^
Error: spawn identify ENOENT
at exports._errnoException (util.js:870:11)
at Process.ChildProcess._handle.onexit (internal/child_process.js:178:32)
at onErrorNT (internal/child_process.js:344:16)
at nextTickCallbackWith2Args (node.js:442:9)
at process._tickCallback (node.js:356:17)
虚拟机配置： 虚拟机1（已成功构建）
[WARNING] The artifact com.lowagie:itext:jar:4.2.1 has been relocated to com.itextpdf:itextpdf:jar:5.5.6
虚拟机2（无法构建）
$ uname -a
Linux river 3.10.0-327.4.4.el7.x86_64 #1 SMP Tue Jan 5 16:07:00 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
$ java -version java
version "1.7.0_91" OpenJDK Runtime Environment (rhel-2.6.2.3.el7-x86_64 u91-b00)
OpenJDK 64-Bit Server VM (build 24.91-b01, mixed mode)
$ mvn -v
Apache Maven 3.2.5 (NON-CANONICAL_2015-03-04T12:12:39_root; 2015-03-04T12:12:39-06:00)
Maven home: /opt/maven
Java version: 1.7.0_91, vendor: Oracle Corporation
Java home: /usr/lib/jvm/java-1.7.0-openjdk-1.7.0.91-2.6.2.3.el7.x86_64/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.10.0-327.4.4.el7.x86_64", arch: "amd64", family: "unix"
可能出现什么问题？