我正试图在Android Studio中使用Proguard。
我有一个大家都有的经典问题，那就是"对类或接口的未解决引用"。
就像我在任何地方读到的一样，我试图将-dontwarn命令添加到proguard-project.txt文件中，但它没有改变任何内容。
也许我的设置忽略了proguard-project.txt文件？一切似乎都很好，但我是安卓工作室、gradle和proguard的新手，所以也许我错过了什么！感谢您的帮助。
这是我的文件：
proguard-project.txt
-dontwarn org.apache.**
project.properties
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
# Project target.
target=android-15
android.library=false
当前警告我收到
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.X86Options
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.PowerPCOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.IA64Options
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.ARMOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.ARMThumbOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$1: can't find referenced class org.tukaani.xz.SPARCOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$BCJDecoder: can't find referenced class org.tukaani.xz.FilterOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$BCJDecoder: can't find referenced class org.tukaani.xz.FinishableWrapperOutputStream
Warning:org.apache.commons.compress.archivers.sevenz.Coders$BCJDecoder: can't find referenced class org.tukaani.xz.FilterOptions
Warning:org.apache.commons.compress.archivers.sevenz.Coders$BCJDecoder: can't find referenced class org.tukaani.xz.FinishableOutputStream
Warning:org.apache.commons.compress.archivers.sevenz.Coders$LZMADecoder: can't find referenced class org.tukaani.xz.LZMAInputStream
Warning:org.apache.commons.compress.archivers.sevenz.DeltaDecoder: can't find referenced class org.tukaani.xz.DeltaOptions
Warning:org.apache.commons.compress.archivers.sevenz.DeltaDecoder: can't find referenced class org.tukaani.xz.FinishableWrapperOutputStream
Warning:org.apache.commons.compress.archivers.sevenz.DeltaDecoder: can't find referenced class org.tukaani.xz.DeltaOptions
Warning:org.apache.commons.compress.archivers.sevenz.DeltaDecoder: can't find referenced class org.tukaani.xz.UnsupportedOptionsException
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.LZMA2Options
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.LZMA2InputStream
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.FinishableWrapperOutputStream
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.LZMA2Options
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.FinishableOutputStream
Warning:org.apache.commons.compress.archivers.sevenz.LZMA2Decoder: can't find referenced class org.tukaani.xz.LZMA2Options
Warning:org.apache.commons.compress.compressors.lzma.LZMACompressorInputStream: can't find referenced class org.tukaani.xz.LZMAInputStream
Warning:org.apache.commons.compress.compressors.xz.XZCompressorInputStream: can't find referenced class org.tukaani.xz.XZ
Warning:org.apache.commons.compress.compressors.xz.XZCompressorInputStream: can't find referenced class org.tukaani.xz.XZInputStream
Warning:org.apache.commons.compress.compressors.xz.XZCompressorInputStream: can't find referenced class org.tukaani.xz.SingleXZInputStream
Warning:org.apache.commons.compress.compressors.xz.XZCompressorInputStream: can't find referenced class org.tukaani.xz.XZ
Warning:org.apache.commons.compress.compressors.xz.XZCompressorOutputStream: can't find referenced class org.tukaani.xz.XZOutputStream
Warning:org.apache.commons.compress.compressors.xz.XZCompressorOutputStream: can't find referenced class org.tukaani.xz.LZMA2Options
Warning:org.apache.commons.compress.compressors.xz.XZCompressorOutputStream: can't find referenced class org.tukaani.xz.XZOutputStream
Warning:org.apache.commons.compress.compressors.xz.XZCompressorOutputStream: can't find referenced class org.tukaani.xz.LZMA2Options
Warning:org.apache.commons.compress.compressors.xz.XZCompressorOutputStream: can't find referenced class org.tukaani.xz.XZOutputStream
Warning:org.codehaus.jackson.map.ext.DOMSerializer: can't find referenced class org.w3c.dom.bootstrap.DOMImplementationRegistry
Warning:org.joda.time.DateMidnight: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.DateTime: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.DateTimeZone: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.DateTimeZone: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Days: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Days: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Duration: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Hours: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Hours: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Instant: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.LocalDate: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.LocalDate: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.LocalDateTime: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.LocalDateTime: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.LocalTime: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.LocalTime: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Minutes: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Minutes: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.MonthDay: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.MonthDay: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Months: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Months: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.MutableDateTime: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.MutableDateTime: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.MutablePeriod: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Period: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Seconds: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Seconds: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Weeks: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Weeks: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.YearMonth: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.YearMonth: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.Years: can't find referenced class org.joda.convert.FromString
Warning:org.joda.time.Years: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.base.AbstractDuration: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.base.AbstractInstant: can't find referenced class org.joda.convert.ToString
Warning:org.joda.time.base.AbstractPeriod: can't find referenced class org.joda.convert.ToString
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.URI
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.URIException
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.methods.EntityEnclosingMethod
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.methods.ByteArrayRequestEntity
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.methods.EntityEnclosingMethod
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.URIException
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.URI
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.URIException
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.methods.EntityEnclosingMethod
Warning:org.springframework.http.client.CommonsClientHttpRequest: can't find referenced class org.apache.commons.httpclient.methods.RequestEntity
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.MultiThreadedHttpConnectionManager
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpConnectionManager
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.params.HttpConnectionManagerParams
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.GetMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.DeleteMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.HeadMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.OptionsMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.PostMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.PutMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.methods.TraceMethod
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.MultiThreadedHttpConnectionManager
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpConnectionManager
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.params.HttpConnectionManagerParams
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpClient
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpMethodBase
Warning:org.springframework.http.client.CommonsClientHttpRequestFactory: can't find referenced class org.apache.commons.httpclient.HttpConnectionManager
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.HttpMethod
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.Header
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.HttpMethod
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.Header
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.HttpMethod
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.Header
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.HttpMethod
Warning:org.springframework.http.client.CommonsClientHttpResponse: can't find referenced class org.apache.commons.httpclient.Header
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedInput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedOutput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedInput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedOutput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedInput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.WireFeedOutput
Warning:org.springframework.http.converter.feed.AbstractWireFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.WireFeed
Warning:org.springframework.http.converter.feed.AtomFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.atom.Feed
Warning:org.springframework.http.converter.feed.RssChannelHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.rss.Channel
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedInput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedOutput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedInput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedOutput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedInput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.FeedException
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.io.SyndFeedOutput
Warning:org.springframework.http.converter.feed.SyndFeedHttpMessageConverter: can't find referenced class com.google.code.rome.android.repackaged.com.sun.syndication.feed.synd.SyndFeed
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.ObjectMapper
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonFactory
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonGenerator
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.ObjectMapper
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.JavaType
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonGenerator
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonFactory
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonGenerator
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.ObjectMapper
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.JavaType
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonGenerator
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.databind.JavaType
Warning:org.springframework.http.converter.json.MappingJackson2HttpMessageConverter: can't find referenced class com.fasterxml.jackson.core.JsonEncoding
Warning:org.springframework.http.converter.xml.SimpleXmlHttpMessageConverter: can't find referenced class org.simpleframework.xml.core.Persister
Warning:org.springframework.http.converter.xml.SimpleXmlHttpMessageConverter: can't find referenced class org.simpleframework.xml.Root
Warning:org.springframework.http.converter.xml.SimpleXmlHttpMessageConverter: can't find referenced class org.simpleframework.xml.Serializer
Warning:there were 276 unresolved references to classes or interfaces.
You may need to add missing library jars or update their versions.
If your code works fine without the missing classes, you can suppress
the warnings with '-dontwarn' options.
(http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
这里的体验来自Eclipse，而不是Android Studio。我通常会将我的proguard.cfg文件放在项目的根级位置。我的project.properties中引用该文件的行看起来像这样：
proguard.config=proguard.cfg
当你有这个：
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
您是否也有一个名为proguard-android.txt的文件？我不熟悉你的命令行中的风格惯例。也许是找不到合适的文件？