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docs(ngcc): add additional next steps to an error (#37672) 

The file-writing error in the this commit can also be the result
of the ngcc process dying in the middle of writing files.

This commit improves the error message to offer a resolution
in case this is the reason for the error.

Fixes #36393

PR Close #37672
This commit is contained in:
Pete Bacon Darwin 2020-06-22 17:11:15 +01:00 committed by Andrew Kushnir
parent a0595f4b4f
commit bedc0451a0
2 changed files with 12 additions and 4 deletions
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8
packages/compiler-cli/ngcc/src/writing/in_place_file_writer.ts
View File

@ -49,8 +49,12 @@ export class InPlaceFileWriter implements FileWriter {
`Tried to write ${
backPath} with an ngcc back up file but it already exists so not writing, nor backing up, ${
file.path}.\n` +
`This error may be because two or more entry-points overlap and ngcc has been asked to process some files more than once.\n` +
`You should check other entry-points in this package and set up a config to ignore any that you are not using.`);
`This error may be caused by one of the following:\n` +
`* two or more entry-points overlap and ngcc has been asked to process some files more than once.\n` +
` In this case, you should check other entry-points in this package\n` +
` and set up a config to ignore any that you are not using.\n` +
`* a previous run of ngcc was killed in the middle of processing, in a way that cannot be recovered.\n` +
` In this case, you should try cleaning the node_modules directory and any dist directories that contain local libraries. Then try again.`);
}
} else {
if (this.fs.exists(file.path)) {

8
packages/compiler-cli/ngcc/test/writing/in_place_file_writer_spec.ts
View File

@ -101,8 +101,12 @@ runInEachFileSystem(() => {
`Tried to write ${
absoluteBackupPath}.__ivy_ngcc_bak with an ngcc back up file but it already exists so not writing, nor backing up, ${
absoluteBackupPath}.\n` +
`This error may be because two or more entry-points overlap and ngcc has been asked to process some files more than once.\n` +
`You should check other entry-points in this package and set up a config to ignore any that you are not using.`
`This error may be caused by one of the following:\n` +
`* two or more entry-points overlap and ngcc has been asked to process some files more than once.\n` +
` In this case, you should check other entry-points in this package\n` +
` and set up a config to ignore any that you are not using.\n` +
`* a previous run of ngcc was killed in the middle of processing, in a way that cannot be recovered.\n` +
` In this case, you should try cleaning the node_modules directory and any dist directories that contain local libraries. Then try again.`
]]);
});
});