8,460
个编辑
更改
→常见问题
=== 常见问题 ===
Android8.1 编译工具链使用了全新的 Jack server 来取代以往的编译器工具，所以编译时会出现问题。以下是 Android8.1 编译的常见问题。<br><br>
'''1)编译前要先配 Jack server'''<br>
1.修改$HOME 路径下的.jack 文件：<br>
[[Image:4G-Iot-36.png]]<br><br>
2.修改$HOME 路径下的.jack-settings 文件：<br>
[[Image:4G-Iot-37.png]]<br>
（注：此处两个文件的 TCP 端口号必须是没有用过的，且两个文件的端口配置要相同！）<br><br>
3.code/prebuilts/sdk/tools/目录下，执行./jack-admin kill-server 和./jack-admin restart-server<br><br>
'''2)Failed to contact Jack server'''<br>
如果你在编译的过程中，出现了如下的问题：<br>
FAILED: /bin/bash -c "(prebuilts/sdk/tools/jack-admin install-server prebuilts/sdk/tools/jack-launcher.jar<br>
prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 2>&1 || (exit 0) ) && <br>
(JACK_SERVER_VM_ARGUMENTS=\"-Dfile.encoding=UTF-8-XX:+TieredCompilation\" prebuilts/sdk/tools/jack-admin start-server 2>&1 || exit 0 ) &&<br>
(prebuilts/sdk/tools/jack-admin update server prebuilts/sdk/tools/jack-server-4.8.ALPHA.jar 4.8.ALPHA 2>&1 || exit 0 ) &&<br>
(prebuilts/sdk/tools/jack-admin update jack prebuilts/sdk/tools/jacks/jack-2.28.RELEASE.jar 2.28.RELEASE || exit 47; prebuilts/sdk/tools/jack-admin<br>
update jack prebuilts/sdk/tools/jacks/jack-3.36.CANDIDATE.jar 3.36.CANDIDATE || exit 47; prebuilts/sdk/tools/jack-admin update jack<br>
prebuilts/sdk/tools/jacks/jack-4.7.BETA.jar 4.7.BETA || exit 47 )"<br>
Writing client settings in /home/user3/.jack-settings<br>
Installing jack server in "/home/user3/.jack-server"
<br>
修改：在 code/prebuilts/sdk/tools/目录下，执行./jack-admin kill-server 和./jack-admin restart-server，然后重新编译。<br><br>
'''3)Out of memory error'''<br>
1.首先停止 jack server 的运行；
2.去 prebuilts/sdk/tools 目录下执行 jack-admin kill-server 以杀死 Jack server；<br>
3.然后打开 jack-admin 文件，在文件中搜索 JACK_SERVER_COMMAND， 然 后 将 JACK_SERVER_COMMAND="java -XX:MaxJavaStackTraceDepth=-1
-Djava.io.tmpdir=$TMPDIR $JACK_SERVER_VM_ARGUMENTS -cp<br>
$LAUNCHER_JAR $LAUNCHER_NAME"， 改为 JACK_SERVER_COMMAND="java -Xmx3g -XX:MaxJavaStackTraceDepth=-1<br>
-Djava.io.tmpdir=$TMPDIR $JACK_SERVER_VM_ARGUMENTS -cp<br>
$LAUNCHER_JAR $LAUNCHER_NAME"。也就是添加了-Xmx3g 选项。<br><br>
'''4)FAILED: setup-jack-server'''<br>
Jack server installation not found<br>
解决方法：到 prebuilts/sdk/tools 目录下执行一下这个命令：./jack-admin install-server jack-launcher.jar jack-server-4.11.ALPHA.jar<br>
jack-launcher.jar，jack-server-4.11.ALPHA.jar 这两个文件的名字视 prebuilts/sdk/tools 目录下的文件名而定。<br><br>
'''5)测试问题'''<br>
遇到 sim 卡不能识别的时候，需要格式化烧录。<br><br>
== linux 编译环境搭建 ==
