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-rw-r--r--py/persistentcode.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/py/persistentcode.c b/py/persistentcode.c
index 2fa8c1df0..fac512fb4 100644
--- a/py/persistentcode.c
+++ b/py/persistentcode.c
@@ -216,7 +216,9 @@ mp_raw_code_t *mp_raw_code_load(mp_reader_t *reader) {
|| header[1] != MPY_VERSION
|| header[2] != MPY_FEATURE_FLAGS
|| header[3] > mp_small_int_bits()) {
- mp_raise_ValueError("incompatible .mpy file");
+ // TODO(tannewt): Restore the generic error after we move folks to 2.0.0.
+ // mp_raise_ValueError("incompatible .mpy file");
+ mp_raise_ValueError("Incompatible .mpy file. Please update all .mpy files. See http://adafru.it/mpy-update for more info.");
}
mp_raw_code_t *rc = load_raw_code(reader);
reader->close(reader->data);