春季启动应用程序启动失败

Question

I have been working on a long-time spring-boot project. As of last week, the project started failing to execute. The initial error Banner$Mode has been fixed by updating starter parent version. However now I am getting

Injection of autowired dependencies failed; nested exception is 
java.lang.IllegalArgumentException: Could not resolve placeholder 
'account.name' in value "${account.name}"

In this case, although I run the application with a profile, I see in the console output

INFO  [AccountApp] No active profile set, falling back to default profiles: default

(I am posting everythng that is spring related)

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.6.RELEASE</version>
        <relativePath/>
    </parent>

 <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
        <jackson.version>2.9.0</jackson.version>
        <projversion>1.0</projversion>
        <buildnumber>undefined</buildnumber>
        <buildclassifier></buildclassifier>
    </properties>

<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>ch.qos.logback</groupId>
                    <artifactId>logback-classic</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <version>${spring-boot.version}</version>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-starter-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-log4j</artifactId>
            <version>1.3.8.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <version>${spring-boot.version}</version>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-test</artifactId>
            <version>1.5.6.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>4.3.10.RELEASE</version>
        </dependency>

At this point it is essential to state that besides the pom, all the configuration and the application start worked smoothly. That's why I focused on a dependency based approach.

Many thanks in advance

Answer 1

Thanks for the comments. It turns out the update from spring-boot from 1.2.5 to 1.5.6 also includes a syntax change for application properties, meaning the ${account.name} variable has to be declared as @account.name@ Application started running smoothly after this change.