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IntelliJ doesn't recognize generated sources

There are many similar questions already, but none of the suggested solutions (basically "Clear caches and restart IntelliJ" solve my problem.

I have a maven project that I imported into IntelliJ Community Edition 2017.1. My maven build automatically generates some java sources from google protobuf specs.

Excerpt from pom.xml

         <plugin>
            <groupId>com.github.os72</groupId>
            <artifactId>protoc-jar-maven-plugin</artifactId>
            <version>3.2.0</version>
            <executions>
                <execution>
                    <phase>generate-sources</phase>
                    <goals>
                        <goal>run</goal>
                    </goals>
                    <configuration>
                        <protocVersion>3.1.0</protocVersion> <!-- 2.4.1, 2.5.0, 2.6.1, 3.1.0 -->
                        <inputDirectories>
                            <include>src/main/protobuf</include>
                        </inputDirectories>
                        <outputDirectory>${project.build.directory}/generated-sources/protobuf</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>

The folder / generated sources / protobuf is correctly recognized as "generated sources" with blue icon and wheel for generated sources in IntelliJ -> File -> Project Structure -> Modules -> Sources

The maven target command also works fine.

But IntelliJ's built-in Java compiler is complaining about "Cannot resolve symbol" for my generated class.

Decisions I'm tired of so far

  • adding intermediate folder / target / generated sources / protobuf / => didn't help
  • Invalid caches, delete project file, reimport, restart IDE => didn't help
  • Maven -> Reimport all projects => didn't help

Other offers?

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3 answers


SOLUTION: The generated files were large. Had to increase

idea.max.intellisense.filesize=2500


in IDE_HOME\bin\idea.properties

as described here: File size exceeds the set limit (2560000), code drawing functions are not available

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In IntelliJ IDEA 2016 and newer, you can change this setting in Help> Edit Custom Properties .

Older versions don't have a GUI for this. But you can change it if you edit the IntelliJ IDEA platform properties file as described here: https://intellij-support.jetbrains.com/hc/en-us/articles/206544869-Configuring-JVM-options-and-platform -properties



# Maximum file size (kilobytes) IDE should provide code assistance for.
idea.max.intellisense.filesize=50000

# Maximum file size (kilobytes) IDE is able to open.
idea.max.content.load.filesize=50000

Remember to save and reload IntelliJ IDEA.

+2


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Try to add

<goal>compile</goal>
<goal>compile-custom</goal>

for node purposes.

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