"libxml/parser.h: 没有那个文件或目录"解决方案

本文介绍了解决在Ubuntu系统中因未安装libxml2-dev而导致的问题的方法。通过使用命令`sudo apt-get install libxml2-dev`进行安装,并创建软链接到相应目录,最后在编译时通过`g++ -lxml2 xxxxxx.cpp`引用。

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这是因为在ubuntu上没有安装libxml2-dev,这个包应该是开发用的,而已安装的libxml2应该只是像jre一样的部件。

解决方案:sudo apt-get install libxml2-dev 这个命令算是安装上了。所有的头文件在/usr/include/libxml2/这个文件目录下,lib文件在/usr/lib在这个下面。

sudo ln -s /usr/include/libxml2/libxml   /usr/include/libxml

g++ -lxml2 xxx xxx.cpp
http://hi.baidu.com/dingcaiwei/blog/item/fdd6d5ef6b7bbefacf1b3efd.html
user@debian:~/ModSecurity$ ./build.sh libtoolize: putting auxiliary files in '.'. libtoolize: copying file './ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'build'. libtoolize: copying file 'build/libtool.m4' libtoolize: copying file 'build/ltoptions.m4' libtoolize: copying file 'build/ltsugar.m4' libtoolize: copying file 'build/ltversion.m4' libtoolize: copying file 'build/lt~obsolete.m4' 致命错误:没有发现名称,无法描述任何东西。 致命错误:没有发现名称,无法描述任何东西。 致命错误:没有发现名称,无法描述任何东西。 fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. configure.ac:50: installing './ar-lib' configure.ac:50: installing './compile' configure.ac:163: installing './config.guess' configure.ac:163: installing './config.sub' configure.ac:45: installing './install-sh' configure.ac:45: installing './missing' parallel-tests: installing './test-driver' examples/multiprocess_c/Makefile.am: installing './depcomp' src/Makefile.am:70: warning: wildcard actions/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/ctl/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/data/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/disruptive/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/transformations/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard debug_log/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard audit_log/writer/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard collection/backend/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard operators/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard parser/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard request_body_processor/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard utils/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard variables/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard engine/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard *.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) configure.ac: installing './ylwrap' src/Makefile.am:70: warning: wildcard actions/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/ctl/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/data/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/disruptive/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard actions/transformations/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard debug_log/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard audit_log/writer/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard collection/backend/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard operators/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard parser/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard request_body_processor/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard utils/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard variables/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard engine/*.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) src/Makefile.am:70: warning: wildcard *.h: non-POSIX variable name src/Makefile.am:70: (probably a GNU make extension) fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. fatal: No names found, cannot describe anything. user@debian:~/ModSecurity$ 什么错误
06-29
<think>这个错误表明编译时找不到 `xmlparse/XmlPullParser.h` 头文件。在 Android 源代码树中,这个头文件的位置可能已经改变,者你的模块没有正确包含路径。让我们分析一下: ### 问题原因: 1. **头文件路径变更**:在较新的 Android 版本中,XML 解析相关的头文件可能被移动移除。 2. **模块依赖缺失**:你的模块(例如 `libgui` 相关库)可能没有声明对 XML 库的依赖。 ### 解决方案: #### 1. 确认头文件位置 首先,在 Android 源代码树中搜索 `XmlPullParser.h`: ```bash # 在 Android 源码根目录执行 find . -name "XmlPullParser.h" ``` 常见路径可能是: - `frameworks/base/include/xmlparse/XmlPullParser.h` (旧版本) - `frameworks/native/include/xmlparse/XmlPullParser.h` (较新版本) - `system/core/include/xmlparse/XmlPullParser.h` 如果找不到,可能已被废弃。 #### 2. 更新包含路径 根据搜索结果,修改包含语句: ```cpp // 旧路径 #include <xmlparse/XmlPullParser.h> // 新路径示例(根据实际情况调整) #include <xmlparse/XmlPullParser.h> // 如果还在原位置但路径未包含,则需要调整模块依赖 // 者 #include <utils/XmlPullParser.h> // 另一种可能 ``` #### 3. 添加模块依赖(Android.bp Android.mk) 在模块定义文件中添加依赖: **Android.bp 示例:** ```bp cc_library { name: "your_library_name", // ... header_libs: ["libxml2_headers"], // 者其他提供头文件的库 shared_libs: [ "libutils", "libxml2", // 可能需要链接共享库 ], include_dirs: [ "frameworks/native/include", // 根据头文件位置添加 "system/core/include", ], } ``` **Android.mk 示例:** ```makefile LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := your_module # ... LOCAL_C_INCLUDES += \ frameworks/native/include \ system/core/include LOCAL_SHARED_LIBRARIES := \ libutils \ libxml2 # 其他提供 XML 解析的库 include $(BUILD_SHARED_LIBRARY) # 其他构建类型 ``` #### 4. 替代方案:使用其他 XML 解析器 如果 `XmlPullParser` 已被废弃,可以改用: - **TinyXML2**:轻量级 XML 解析器 - **libxml2**:功能完整的 XML 库 - **Android 自带的 XmlResourceParser**(如果是在应用层) ### 使用 TinyXML2 的示例代码: 如果决定迁移到 TinyXML2: #### 步骤 1:添加依赖 **Android.bp:** ```bp cc_library { name: "your_library", shared_libs: ["libtinyxml2"], // ... } ``` **Android.mk:** ```makefile LOCAL_SHARED_LIBRARIES += libtinyxml2 ``` #### 步骤 2:修改解析代码 ```cpp #include <tinyxml2.h> using namespace tinyxml2; bool DisplayEventDispatcher::parseFrameRateCfg(const std::string& cfgPath) { XMLDocument doc; if (doc.LoadFile(cfgPath.c_str()) != XML_SUCCESS) { ALOGE("Failed to load XML file: %s", cfgPath.c_str()); return false; } XMLElement* root = doc.RootElement(); if (!root) { ALOGE("No root element in XML file: %s", cfgPath.c_str()); return false; } // 遍历所有 <app> 元素 for (XMLElement* app = root->FirstChildElement("app"); app != nullptr; app = app->NextSiblingElement("app")) { const char* package = app->Attribute("package"); const char* rateStr = app->Attribute("rate"); if (!package || !rateStr) { ALOGW("Missing attribute in <app> tag"); continue; } char* end; long rate = strtol(rateStr, &end, 10); if (end == rateStr || *end != '\0' || rate <= 0) { ALOGW("Invalid rate value: %s for package: %s", rateStr, package); continue; } mPkgNameToFrameRate.emplace(package, static_cast<int>(rate)); ALOGI("Parsed config: %s -> %d Hz", package, rate); } return true; } ``` ### 迁移注意事项: 1. **错误处理**:TinyXML2 提供详细的错误码(`doc.ErrorID()`) 2. **内存安全**:自动管理内存,无需手动释放 3. **性能**:比旧解析器更快,内存占用更小 ### 验证构建: 确保在模块中包含 TinyXML2: ```bp // 在 Android.bp 中 shared_libs: ["libtinyxml2"], ``` ### 备选方案:使用 libxml2 如果系统已有 libxml2,也可以使用它(但比 TinyXML2 重)。 §§相关问题§§: 1. 在 Android 系统开发中如何正确添加第三方库的依赖? 2. TinyXML2 与 libxml2 在性能上有何主要差异? 3. 如何为 Android 原生模块编写单元测试来验证 XML 解析逻辑? 4. 当 XML 文件非常大时,应该采用什么解析策略来避免内存溢出?</think># Android编译错误:xmlparse/XmlPullParser.h找不到的解决方案 这个错误表明编译系统无法找到`XmlPullParser.h`头文件。在Android系统开发中,XML解析相关头文件的位置和包含方式可能因Android版本不同而变化。以下是详细解决方案: ## 问题原因分析 1. **Android版本差异**: - Android 10及更早版本:头文件位于`frameworks/base/include/xmlparse/` - Android 11+:XML解析功能迁移到`libxml2`库 2. **模块依赖缺失**: - 未在构建文件中声明对XML解析库的依赖 3. **包含路径错误**: - 使用了错误的包含路径过时的头文件名 ## 解决方案 ### 方案1:更新包含路径(适用于Android 10及更早版本) ```cpp // 替换 #include <xmlparse/XmlPullParser.h> // 为 #include <utils/XmlPullParser.h> // Android 10及更早的正确路径 ``` 同时需要更新构建文件: **Android.bp**: ```bp cc_library { name: "your_module", // ... header_libs: ["libxml2_headers"], // 添加头文件库 shared_libs: [ "libutils", "libxml2", // 添加XML库依赖 ], include_dirs: [ "frameworks/native/include", // 添加包含路径 ], } ``` **Android.mk**: ```makefile LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := your_module # ... LOCAL_C_INCLUDES += \ frameworks/native/include \ # 添加包含路径 external/libxml2/include # 添加libxml2路径 LOCAL_SHARED_LIBRARIES += \ libutils \ libxml2 # 添加XML库依赖 ``` ### 方案2:迁移到libxml2(适用于Android 11+) ```cpp #include <libxml/parser.h> #include <libxml/tree.h> bool DisplayEventDispatcher::parseFrameRateCfg(const std::string& cfgPath) { xmlDocPtr doc = xmlReadFile(cfgPath.c_str(), NULL, 0); if (!doc) { ALOGE("Failed to parse XML file: %s", cfgPath.c_str()); return false; } xmlNodePtr root = xmlDocGetRootElement(doc); for (xmlNodePtr node = root->children; node; node = node->next) { if (node->type != XML_ELEMENT_NODE) continue; if (xmlStrcmp(node->name, BAD_CAST "app") == 0) { xmlChar* package = xmlGetProp(node, BAD_CAST "package"); xmlChar* rateStr = xmlGetProp(node, BAD_CAST "rate"); if (package && rateStr) { char* end; long rate = strtol((char*)rateStr, &end, 10); if (end != (char*)rateStr && *end == '\0' && rate > 0) { mPkgNameToFrameRate.emplace((char*)package, static_cast<int>(rate)); } } xmlFree(package); xmlFree(rateStr); } } xmlFreeDoc(doc); return true; } ``` ### 方案3:使用Android内置的Resource解析器 ```cpp #include <android-base/strings.h> #include <androidfw/ResourceTypes.h> bool DisplayEventDispatcher::parseFrameRateCfg(const std::string& cfgPath) { std::string content; if (!android::base::ReadFileToString(cfgPath, &content)) { ALOGE("Failed to read file: %s", cfgPath.c_str()); return false; } ResXMLTree parser; parser.setTo(content.data(), content.size()); ResXMLParser::event_code_t event; while ((event = parser.next()) != ResXMLParser::END_DOCUMENT) { if (event != ResXMLParser::START_TAG) continue; String8 tagName(parser.getElementName(&len)); if (tagName != "app") continue; // 获取属性 for (int i = 0; i < parser.getAttributeCount(); i++) { String8 attrName(parser.getAttributeName(i, &len)); if (attrName == "package") { package = String8(parser.getAttributeStringValue(i, &len)); } else if (attrName == "rate") { rateStr = String8(parser.getAttributeStringValue(i, &len)); } } // 处理属性值 if (!package.isEmpty() && !rateStr.isEmpty()) { char* end; long rate = strtol(rateStr.string(), &end, 10); if (end != rateStr.string() && *end == '\0' && rate > 0) { mPkgNameToFrameRate.emplace(package, static_cast<int>(rate)); } } } return true; } ``` ## 构建文件配置建议 ### 针对不同Android版本的通用解决方案 **Android.bp**: ```bp cc_library { name: "display_event_dispatcher", srcs: ["DisplayEventDispatcher.cpp"], cflags: [ "-Wall", "-Werror", ], shared_libs: [ "liblog", "libutils", "libcutils", ], // 根据Android版本选择依赖 target: { android: { shared_libs: [ "libxml2", // Android 11+ ], header_libs: ["libxml2_headers"], }, android_vendor: { shared_libs: [ "libutils", // Android 10及更早 ], }, }, include_dirs: [ "frameworks/native/include", "external/libxml2/include", "system/core/include", ], // 版本特定配置 product_variables: { platform_sdk_version: { cflags: ["-DPLATFORM_SDK_VERSION=%s"], }, }, } ``` ## 调试建议 1. **检查可用头文件**: ```bash # 在Android源码目录中搜索 find . -name "XmlPullParser.h" ``` 2. **验证包含路径**: ```bash make -j1 showcommands your_module 2>&1 | grep " -I" ``` 3. **检查模块依赖**: ```bash make -j1 dumpvar-LOCAL_SHARED_LIBRARIES your_module ``` ## 备选方案:使用纯C++ XML解析器 如果以上方案都不适用,可以考虑集成轻量级XML解析器: ```cpp #include "pugixml.hpp" bool DisplayEventDispatcher::parseFrameRateCfg(const std::string& cfgPath) { pugi::xml_document doc; pugi::xml_parse_result result = doc.load_file(cfgPath.c_str()); if (!result) { ALOGE("XML parsing error: %s", result.description()); return false; } for (pugi::xml_node app : doc.children("app")) { std::string package = app.attribute("package").as_string(); int rate = app.attribute("rate").as_int(0); if (!package.empty() && rate > 0) { mPkgNameToFrameRate.emplace(package, rate); } } return true; } ``` **集成步骤**: 1. 下载pugixml:https://github.com/zeux/pugixml 2. 将`pugixml.hpp`和`pugixml.cpp`添加到项目 3. 在Android.bp中添加: ```bp srcs: ["pugixml.cpp"], ```
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