真机调试Error launching remote program: failed to get the task for process xxx.

1 错误

真机调试运行已有项目的时候：Error launching remote program: failed to get the task for process xxx.

2 错误分析

这是因为证书和签名的问题。

3 解决方案

3.1 添加自定义的生成后脚本

在Build Phases中添加一个Phase，右下角的Add Build Phase，然后单击Add Run Script，输入以下脚本
（对于Xcode 4.1/4.2）
export 
CODESIGN_ALLOCATE=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate

if [ "${PLATFORM_NAME}" == "iphoneos" ] || [ "${PLATFORM_NAME}" == "ipados" ]; then

/Developer/iphoneentitlements401/gen_entitlements.py "my.company.${PROJECT_NAME}" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/${PROJECT_NAME}.xcent";

codesign -f -s "iPhone Developer" --entitlements "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/${PROJECT_NAME}.xcent" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/"

fi
（对于Xcode 4.3/4.3.2）
export CODESIGN_ALLOCATE=/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate

if [ "${PLATFORM_NAME}" == "iphoneos" ] || [ "${PLATFORM_NAME}" == "ipados" ]; then

/Applications/Xcode.app/Contents/Developer/iphoneentitlements/gen_entitlements.py "my.company.${PROJECT_NAME}" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/${PROJECT_NAME}.xcent";

codesign -f -s "iPhone Developer" --entitlements "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/${PROJECT_NAME}.xcent" "${BUILT_PRODUCTS_DIR}/${WRAPPER_NAME}/"

fi

如图所示：

添加Script：



添加脚本代码：

3.2 禁用Xcode自动的签名操作

将工程配置中所有的Code Signing选项全部设为Don't Code Sign，如图。可能需要先点击“All”让这个选项显示出来：



最后重新运行项目即可，如果不行Clean之后再Run。

4 结语

以上就是对于该问题的解决方案，希望对大家有所帮助