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我正在 J2ME-Polish2.1.4 中创建一个新项目，当我使用 J2ME-Polish2.1.4 创建一个新项目时，构建成功但是当我运行此代码时，我会看到有关浮点常量的错误以及更多详细信息以下。

如何从这个问题中恢复？

`J2ME Polish 2.1.4 (2010-01-18) (GPL License)
Loading device database...
Last build was interrupted or failed, now clearing work directory...
using locale [en_US]...
assembling resources for device [Nokia/7610].
preprocessing for device [Nokia/7610].
processing locale code... 
compiling for device [Nokia/7610].
warning: 'includeantruntime' was not set, defaulting to build.sysclasspath=last; set to false for repeatable builds
Compiling 428 source files to D:\Faraz\development\J2ME-Polish-Projectaaaa\build\test\Nokia\7610\en_US\classes
preverifying for device [Nokia/7610].
preverify:ERROR: floating-point constants should not appear
preverify:Error preverifying class de.enough.polish.ui.screenanimations.CubeScreenChangeAnimation
Preverify call failed: 1
C:\WTK2.5.1\bin\preverify.exe -classpath d:\J2ME-Polish2.1.4\import\mmapi.jar;d:\J2ME-Polish2.1.4\import\cldc-1.0.jar;d:\J2ME-Polish2.1.4\import\midp-2.0.jar;d:\J2ME-Polish2.1.4\import\nokia-ui.jar;d:\J2ME-Polish2.1.4\import\wmapi-2.0.jar;d:\J2ME-Polish2.1.4\import\wmapi.jar;d:\J2ME-Polish2.1.4\import\btapi.jar;d:\J2ME-Polish2.1.4\import\m3g.jar;d:\J2ME-Polish2.1.4\import\jsr172.jar;d:\J2ME-Polish2.1.4\import\fileconnection.jar;d:\J2ME-Polish2.1.4\import\pim.jar;d:\J2ME-Polish2.1.4\import\m2g.jar -d D:\Faraz\development\J2ME-Polish-Projectaaaa\build\test\Nokia\7610\en_US\classes -nofp -nofinalize -nonative D:\Faraz\development\J2ME-Polish-Projectaaaa\build\test\Nokia\7610\en_US\classes 
D:\Faraz\development\J2ME-Polish-Projectaaaa\build.xml:87: Unable to preverify for device [Nokia/7610] - preverify returned result 1
BUILD FAILED (total time: 9 seconds) 
`
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1 回答 1

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如果您更深入地研究优选类路径，就会发现导致错误的原因。

C:\WTK2.5.1\bin\preverify.exe -classpath d:\J2ME-Polish2.1.4\import\mmapi.jar;d:\J2ME-Polish2.1.4\import\cldc-1.0.jar;d:\J2ME-Polish2.1.4\import\midp-2.0.jar;d:\J2ME-Polish2.1.4\import\nokia-ui.jar;d:\J2ME-Polish2.1.4\import\wmapi-2.0.jar;d:\J2ME-Polish2.1.4\import\wmapi.jar;d:\J2ME-Polish2.1.4\import\btapi.jar;d:\J2ME-Polish2.1.4\import\m3g.jar;d:\J2ME-Polish2.1.4\import\jsr172.jar;d:\J2ME-Polish2.1.4\import\fileconnection.jar;d:\J2ME-Polish2.1.4\import\pim.jar;d:\J2ME-Polish2.1.4\import\m2g.jar -d D:\Faraz\development\J2ME-Polish-Projectaaaa\build\test\Nokia\7610\en_US\classes -nofp -nofinalize -nonative D:\Faraz\development\J2ME-Polish-Projectaaaa\build\test\Nokia\7610\en_US\classes

以上是指cldc-1.0.jar您的构建配置为确实不支持浮点的 CLDC 1.0。这就是你的构建失败的原因。

要修复它，要么在你的应用程序中去掉浮点代码，要么使用允许浮点和双精度的 CLDC 1.1。

于 2012-03-02T10:47:13.187 回答